Tefillin: Difference between revisions

From Halachipedia
No edit summary
No edit summary
Line 30: Line 30:
# One shouldn't remove one's [[Talit]] until one removed one's Tefillin.<ref>Kitzur S"A 10:20</ref>
# One shouldn't remove one's [[Talit]] until one removed one's Tefillin.<ref>Kitzur S"A 10:20</ref>
# One should wait until at least the kedusha of uva litzion before removing their tefillin. <ref> Shulchan Aruch 25:13, Kitzur S"A 10:19, Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 31 </ref> Preferably though one should wait until after al ken in aleinu lishabeach. <ref> Arizal in Shaar Kavanot derush 5 tefillin, Ben Ish Chai Parashat Chayei Sara: halacha 10. </ref> There is Kabbalistic significance in waiting until the mourner's kaddish that takes place after alenu leshabeach to take off one's tefilin. <ref> Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 30 </ref>
# One should wait until at least the kedusha of uva litzion before removing their tefillin. <ref> Shulchan Aruch 25:13, Kitzur S"A 10:19, Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 31 </ref> Preferably though one should wait until after al ken in aleinu lishabeach. <ref> Arizal in Shaar Kavanot derush 5 tefillin, Ben Ish Chai Parashat Chayei Sara: halacha 10. </ref> There is Kabbalistic significance in waiting until the mourner's kaddish that takes place after alenu leshabeach to take off one's tefilin. <ref> Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 30 </ref>
# Ideally, one should learn a little bit of torah with his tefillin on after prayers. <ref> Arizal quoted by Ben Ish Chai Chayei Sara 11, Chida in machazik beracha siman 25, Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 32. </ref>  
# Ideally, one should learn a little bit of torah after prayers while still wearing Tefillin. <ref> Arizal quoted by Ben Ish Chai Chayei Sara 11, Chida in machazik beracha siman 25, Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 32. </ref>  
# On a day when we take out the sefer Torah, one should not remove his tefilin until the Torah is returned, however, if one must do so, he should put his talit over his head when removing the tefilin shel rosh in order that one's head be covered during te return of the sefer Torah. <ref> Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 33 </ref>
# On a day when there is [[Kriyat HaTorah]], one should not remove his tefilin until the Torah is returned to the Aron, however, if one must do so, he should put his talit over his head when removing the tefilin shel rosh in order that one's head be covered during the return of the sefer Torah. <ref> Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 33 </ref>
# On [[rosh chodesh]], one should take off his tefilin before mussaf, after the kaddish which is recited before the amida of mussaf. <ref> Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 34. </ref>
# On [[rosh chodesh]], one should take off his tefilin before mussaf, after the kaddish which is recited before the amida of mussaf. <ref> Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 34. </ref>
# When there is a [[brit mila]], one should keep his tefilin on until afterwards because the [[brit mila]] and tefilin are both an "ot." The mihag is that the sandak, mohel, and father of the son receiving the berit mila procedure keep their tefilin on. <ref> Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 37. </ref>
# When there is a [[brit mila]], one should keep his tefilin on until afterwards because the [[brit mila]] and tefilin are both an "ot." The mihag is that the sandak, mohel, and father of the son receiving the berit mila procedure keep their tefilin on. <ref> Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 37. </ref>
Line 37: Line 37:
# One should remove the tefilin shel rosh with his weaker hand to show his desire to fulfill mitzvot and reluctance to stop. <ref> Ben Ish Chai Chayei Sara: Halacha 10, Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 39. </ref>
# One should remove the tefilin shel rosh with his weaker hand to show his desire to fulfill mitzvot and reluctance to stop. <ref> Ben Ish Chai Chayei Sara: Halacha 10, Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 39. </ref>
# It is a nice practice to kiss the tefillin upon removing them. <ref> Shulchan Aruch 28:3</ref>
# It is a nice practice to kiss the tefillin upon removing them. <ref> Shulchan Aruch 28:3</ref>
# When putting the tefilin back one should place the tefilin shel rosh on the bag's left. <ref> Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, distraction from tefilin anf their removal, seif 7 </ref>
# When putting the tefilin back one should place the tefilin shel rosh on the bag's left. <ref> Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, distraction from tefilin and their removal, seif 7 </ref>
# One should be careful not to put one's talit or siddur on top of his tefilin when placing one's religious articles bag in his bag. <ref> Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, distraction from tefilin anf their removal, seif 8 </ref>
# One should be careful not to put one's talit or siddur on top of his tefilin when placing one's religious articles bag in his bag. <ref> Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, distraction from tefilin and their removal, seif 8 </ref>
# There is a custom to kiss the tefilin before putting them away in order to display our love for the mitzvot. <ref> Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, distraction from tefilin anf their removal, seif 11 </ref>
# There is a custom to kiss the tefilin before putting them away in order to display our love for the mitzvot. <ref> Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, distraction from tefilin and their removal, seif 11 </ref>
==[[Talit]] before Tefillin==
==[[Talit]] before Tefillin==
# One should put on [[Talit]] before Tefillin.<Ref> S”A 25:1 says that the [[Talit]] goes first because we want to increase in Kedusha from [[Talit]] to Teffilin. </ref> Even if the [[Talit]] is only obligated in [[Tzitzit]] Derabbanan it still takes precedence to the Teffilin. <Ref> Mishna Brurah 25:1, Halacha Brurah 25:7, Ben Ish Chai Vayera Halacha 3 </ref>
# One should put on [[Talit]] before Tefillin.<Ref> S”A 25:1 says that the [[Talit]] goes first because we want to increase in Kedusha from [[Talit]] to Teffilin. </ref> Even if the [[Talit]] is only obligated in [[Tzitzit]] Derabbanan it still takes precedence to the Teffilin. <Ref> Mishna Brurah 25:1, Halacha Brurah 25:7, Ben Ish Chai Vayera Halacha 3 </ref>

Revision as of 13:14, 24 April 2013

There is an obligation for men over the age of Bar Mitzvah to wear Tefillin daily. [1] The obligation of tefillin is mentioned four times in the Torah. [2] The details of the laws are described below:

A pair of Tefillin wrapped in their cases

Importance of Tefillin

  1. One who is meticulous concerning the mitzvah of tefillin and treats it with holiness merits a long life in this world and a portion in the world to come. [3]

Putting on Tefillin at home

  1. One who is careful to wear a Talit Katan (Tzitzit) should put on the Talit Katan and Tefillin in one's house and then walk to Shul wearing Tefillin and in Shul put on a Talit Gadol. [4] However, some say that one should only put on one's Tefilin at home if one had put on a Talit Gadol beforehand. [5]
  2. If one will have to pass dirty areas or there are goyim between one’s house and the Shul, one should put on the Tefillin in the hallway next to the Shul itself if possible. [6]
  3. Because the primary concern is to only enter Shul wearing Tefillin, one should have the Tefillin outside Shul from the day before. [7]
  4. Some say that one should also to walk out of Shul wearing Tefillin. [8]
  5. Some say it’s preferable to put on Tefillin outside of Shul even if one will not be one of the first ten in the minyan because of it. [9]

When to put on Tefillin

  1. The earliest time to put on Tefillin is the time of MeSheyakir. [10]
  2. The minhag is to put on Tefillin after having said Birchot Hashachar and Birchot Hatorah but preferably before the Shema in korbanot and at least before Parshat HaTamid. [11]
  3. One may not put on Tefillin at night. [12] If one has not put on his tefillin, he still can during the time of bein hashemashot even though generally it is forbidden to wear them at night, as long as he has not recited arvit. [13]
  4. Some have the minhag to keep their tefillin on during a brit milah [14] while some people remove it before the brit. [15]
  5. One may put on Tefillin during the day and not during the night. [16] One may put them on in the morning from the time of MeSheYakir. [17]
  6. Nowadays the prevailing custom is to lay them only during the weekday morning service. [18]
  7. The minimum requirement is to have Tefillin on during Kriyat Shema and Shemoneh Esrei. [19]
  8. The problem with wearing them all day is the necessity to remove them when encountering an unclean place and the requirement to constantly have in mind the knowledge that they are being worn.
  9. If one has a choice between praying the amida with the tzibbur or waiting for a pair of tefillin he should wait for the tefillin and pray alone unless the time for praying is going to pass. [20]
  10. If one is waiting for a pair of tefillin and the time to say keriat shema may pass, he should recite shema without tefillin. [21]
  11. When one says Vekeshartem LeOt Al Yadecha one should touch one's Tefillin shel Yad and when one says VeHayu VeTotafot Ben Aynecha one should touch one's Tefillin shel rosh. [22]
  12. Some have the minhag to touch their Tefillin when they say the following prayers: Oter Yisrael BeTifara (Tefillin shel Rosh only), Ozer Yisrael BeGevura (Tefillin shel yad only), Kadesh Li Kol Bechor, at the words Yehe Kavod and Maasbeha Lechol chay ratzon in Hodu, Kadosh Kadosh Kadosh in Birkat Yotzer, Hashem Sifatay Tiftach, Hamivarech Et Amo BaShalom. [23]
  13. If it is after sunset but before tzet hakochavim and one hasn’t put on tefillin, he still can. [24] Once tzet hakochavim passes you cannot. [25]

Removing the Tefillin

  1. According to Ashkenazim, one should remove one's Tefillin standing, however, the Sephardic minhag is to remove the Tefillin shel yad sitting.[26]
  2. One should remove one's Tefillin shel rosh before one's Tefillin shel yad.[27]
  3. One shouldn't remove one's Talit until one removed one's Tefillin.[28]
  4. One should wait until at least the kedusha of uva litzion before removing their tefillin. [29] Preferably though one should wait until after al ken in aleinu lishabeach. [30] There is Kabbalistic significance in waiting until the mourner's kaddish that takes place after alenu leshabeach to take off one's tefilin. [31]
  5. Ideally, one should learn a little bit of torah after prayers while still wearing Tefillin. [32]
  6. On a day when there is Kriyat HaTorah, one should not remove his tefilin until the Torah is returned to the Aron, however, if one must do so, he should put his talit over his head when removing the tefilin shel rosh in order that one's head be covered during the return of the sefer Torah. [33]
  7. On rosh chodesh, one should take off his tefilin before mussaf, after the kaddish which is recited before the amida of mussaf. [34]
  8. When there is a brit mila, one should keep his tefilin on until afterwards because the brit mila and tefilin are both an "ot." The mihag is that the sandak, mohel, and father of the son receiving the berit mila procedure keep their tefilin on. [35]
  9. The Ben Ish Chai says to remove tefillin as follows: standing or sitting remove finger, hand, and two windings of forearm. Then stand to take off shel Rosh and sit to take off rest of shel yad. [36] In contrast, Rav Rephael Baruch Toledano maintains that one should remove tefilin in the following manner: remove tefilin shel yad from hand and a littile bit of one's arm and tefilin shel rosh while standing, then wrap the tefilin shel rosh and return it to its bag, afterwards sit down to remove the rest of the tefilin shel yad and return it to its bag. [37]
  10. One should remove the tefilin shel rosh with his weaker hand to show his desire to fulfill mitzvot and reluctance to stop. [38]
  11. It is a nice practice to kiss the tefillin upon removing them. [39]
  12. When putting the tefilin back one should place the tefilin shel rosh on the bag's left. [40]
  13. One should be careful not to put one's talit or siddur on top of his tefilin when placing one's religious articles bag in his bag. [41]
  14. There is a custom to kiss the tefilin before putting them away in order to display our love for the mitzvot. [42]

Talit before Tefillin

  1. One should put on Talit before Tefillin.[43] Even if the Talit is only obligated in Tzitzit Derabbanan it still takes precedence to the Teffilin. [44]
  2. If one puts his talit and Tefillin in the same bag, one should be careful to place the Talit to the side of the Tefillin so that one takes the Talit first and then the Tefillin. [45]
  3. If one isn’t going to fulfill the mitzvot of Talit and Tefillin one may pass over one and take the other. [46]Hence if the Tefillin was mistakenly placed above the Talit and one doesn’t plan on fulfilling the mitzvah with them now one may remove both and rearrange it. [47]
  4. Similarly, if one has a Talit of Shabbat in the same bag and above the Talit of the weekday one may take the Talit of the weekday even if it’s below. [48]
  5. If one has only a Tefillin and not a Talit, according to Ashkenazim one shouldn’t wait but rather one can just put on the Tefillin, however Sephardim hold that if one will but will have Talit available to him before the latest time to say Shema, one should wait to get the Talit before putting on the Tefillin. However, if one will not have a Talit available before the latest time for Shema, one should don the Tefillin in order to say Shema with Tefillin in the time. [49]
  6. If one takes off one’s Talit and Tefillin momentarily and then returns one should still put on the Talit first. [50]
  7. If one is wearing Tefillin and then a Talit becomes available, one doesn’t have to remove one’s Tefillin, rather one should just put on the Talit while wearing the Tefillin. [51]
  8. If someone by accident took the Tefillin before the Talit, some say that one should put on the Tefillin since one has it in one’s hands, while others hold one should leave the Tefillin (respectfully), engage in another activity and when one returns one can put on the Talit first. [52]
    1. The same applies if one only took the Tefillin in their bag before taking the talit. [53]
    2. If one has Tefillin in the room that one is in and a Talit in the next room, the principle of not passing up the mitzvah applies and so one should put on the Tefillin first or leave the Tefillin, engage in another activity and then get the Talit first. [54]
  9. If one first made a mistake by taking the Tefillin and then made another mistake by putting down the Tefillin. One should put on the Talit first. [55]
  10. There’s a doubt in a situation where one would we embarrassed to put on Tefillin without a Talit whether one can put on the Talit first. [56]
  11. If one can only afford either a tallit or tefillin, tefillin should be bought. [57]

Kavana (intent) when putting on Tefillin

  1. When putting on Tefillin one should have the following Kavana: Hashem commended us to wear these 4 parshiot (in the Tefllin) which speak of the oneness of Hashem and exodus of Egypt in order that we remember the miracles that reflect Hashem’s totally control over the upper and lower worlds. One should also have intent to make one’s Nishama in one’s brain and the heart which is the seat of emotion and thought, subservient to Hashem, and in this way one will remember Hashem and minimize one’s personal pleasures. [58]
  2. This is certainly an important intent, however one didn’t have such an intent one has still fulfilled their obligation. [59]
  3. It’s also important to have intent that is doing the action in order to fulfill a Biblical obligation. [60]

Who is obligated?

  1. All men above the age of thirteen are required to put on tefillin daily. [61]
  2. Tefillin is a Mitzvah Aseh SheHaZman Grama (time bound mitzvah) and so women are exempt. Even though usually women are allowed to fulfill mitzvot from which they are exempt, by Tefillin it’s preferable that women do not fulfill this mitzvah. [62]

Arrangement of Paragaphs

  1. There is much discussion among the Rishonim (early authorities) about the order in which the biblical passages should be written in the arm and head tefillin. The rabbis most famous for this dispute were Rashi and his grandson Rabbeinu Tam. Rashi held that the order is: Kadesh Li (Shemot 13:1-10), VeHaya Ki Yeviehcha (Shemot 13:11-16), Shema (Devarim 6:4-9), VeHaya Im Shemoa (Devarim 11:13-21). Rabbenu Tam held that the last two passages were switched (thus making the following order Kadesh Li, VeHaya Ki Yeviehcha, VeHaya Im Shemoa, Shema). The custom of the world is to follow Rashi's opinion. [63]
  2. However, pious individuals have the practice of wearing both Tefillin of Rashi and Rabbenu Tam, with no beracha when putting on the Rabbeinu Tam. [64]
  3. Unmarried individuals should not wear Tefillin of Rabbenu Tam unless they know that they are capable of having pure thoughts for as long as the one wears Tefillin. [65]
  4. If one mistakenly put on rabbeinu tam first, some poskim say to recite a beracha when putting on the rashi tefillin. [66]

Halachot of the Boxes (Batim)

  1. The straps as well as the boxes should be black. [67]
  2. The tefllin boxes must be square. [68]
  3. In normal circumstances, a sephardi doesn't fulfill his obligation with tefillin written according to minhag ashkenaz. If there is no choice, a halachic authority should be contacted. [69]

Halachot for the Scribe

  1. The passages must be written in order the of the Torah (Kadesh, VeHaya Ki Yiviyecha, Shema, and then VeHaya Im Shamoa). [70] It is preferable to write the passages for the arm Tefillin before writing the passages for the head Tefillin. [71]
  2. Those in the head Tefillin are written on four separate pieces of parchment, while those in the arm Tefilin are written on one piece of parchment. [72]
  3. The parchment must be made from the skin of a kosher type of animal or bird. [73]
  4. The passages must be written with intent that they it should be written for the Kedusha of Tefillin. [74]
  5. The passages must be written with one's right hand if one is a right-handed or ambidextrous, however, a left-handed person must write the passages with his left hand. [75]
  6. The passages must be written with black ink. [76]
  7. It's good to test out the pen before beginning to write a passage. [77]
  8. The passages for Tefillin must be written by a literate religious adult male Jew. [78]
  9. Tefillin written by a gentile or a Jew who doesn't believe in the entire torah and its divinity are not kosher. [79]

Halachot of the Straps (Retzuot)

  1. The minimum length of the strap for the tefillin for the arm is at least long enough to wrap around the upper arm and extend downwards to the hand and wrapped around the middle finger three times. Preferably though it should be long enough to wrap around the arm six or seven times. [80]
  2. The minimum length of the strap for the tefillin of the head is at least enough to go around the head plus two tefachim on each side going down. [81] The custom is that the right one be longer than the left one and that both go past the midsection. [82]
  3. The straps should be colored black. [83]
  • The coloring should be done for the sake of the mitzva of tefillin. [84]
  • The coloring can be done by a women, or a child if the child is supervised by an adult who instructs him to paint it for its sake. [85]
  • The coloring can be done at night. [86]
  1. One should ensure that the black of the straps is facing outward. [87]
  2. The minimum width of the Tefillin straps is the width of a barley kernel, which is approximately a centimeter. [88]

Process of Putting Tefillin On

  1. Right handed people wear the tefillin on their left arm and left handed people place it on their right arm. Whether you are right handed or left handed is determined by which hand you write with. Someone who is completely ambidextrous should place it on the left arm. [89] One who in the past performed all activities with his right hand but for whatever reason has lost use of it and now his left becomes stronger should place it on the right arm. [90]
  2. The Tefillin of the arm is put on before the Tefillin of the head. [91] Therefore one should be careful to arrange the Tefillin in the case so that one takes the Tefillin shel yad first. Furthermore, it is proper to keep the tefilin shel rosh in one's bag or at least still wrapped until one is finished donning the tefilin shel yad. [92]
  3. The sephardic minhag is to place the tefillin shel yad while seated and the tefillin shel rosh while standing, [93] and remain standing while wrapping the tefillin around the hand. [94] A sephardi who prays in an ashkenazic minyan should place his tefillin according to sephardic minhag. [95]
  4. Sephardim have the custom to recite the passages of "kadesh li" and vihaya ki yiveacha," two of the four passages in tefillin after putting them on. [96]
  5. The beracha of shehecheyanu is not recited the first time someone puts on tefillin. [97]
  6. If one injured his arm, he should wrap his tefilin on top of the rag that covers his wound. [98] Nonetheless, one must try to avoid wrapping his tefilin over his wound's rag. [99] Furthermore, in a case where donning the tefilin over a rag is necessary, one does not recite a beracha on the tefilin shel yad, but one should recite a beracha on the tefilin shel rosh and have the tefilin shel yad in mind. [100]

If one mistakenly put on the Tefilin Shel Rosh First

  1. If one mistakenly took the Tefillin Shel Rosh first, one must put down that Tefillin, and put on the Tefillin Shel Yad first. [101]
  2. If one mistakenly put on the tefilin shel rosh first, he should put on the tefilin shel yad afterwards and need not take off the tefilin shel rosh before putting the tefilin shel yad on. However, if one put the tefilin shel rosh on incorrectly, he should take it off, put on the tefilin shel yad, and then re-don the tefilin shel rosh. [102]

If one only has one of the Tefilin

  1. If one only has one of the tefilin he should wear it and say the beracha, similarly, if one of his tefilin are pasul he should still wear the other and recite the beracha on it. [103]

Brachot of Tefillin

  1. Before the strap of the arm-tefillin is tightened, the blessing of להניח תפילין is said. [104] If someone forgot to recite the blessing before tightening the arm tefillin he should still recite it, even if he has already placed his head tefillin. [105]
  2. Upon placement of the head-tefillin, Sephardic and Hasidic authorities are of the opinion that the blessing on laying the head-tefillin is not necessary and the one blessing on laying the arm-tefillin is sufficient. [106]
  3. It is strictly forbidden to talk between the placement of the arm and head-tefillin. [107] Furthermore, one should not answer Kaddish or Kedusha between putting on Tefillin Shel Yad and Tefillin Shel Rosh, yet one should pause to listen to Kaddish or Kedusha.[108] If he mistakenly answered he doesn't recite a beracha on the head tefillin. [109] One should not answer "amen" to another's beracha between donning the tefillin shel yad and tefillin shel rosh. [110] Nevertheless, if one accidentally answered "amen" to another's beracha, he does not make a beracha on the tefillin shel rosh. [111]
  4. However, if one spoke by mistake about things unrelated to the tefillin, he must recite the beracha of al mitzvat tefillin as the Ashkenaz. [112] If he mistakenly spoke about things related to the tefillin he not need to recite another beracha. [113]
  5. Ashkenazim, however, do recite a second blessing of על מצות תפילין on the head-tefillin, before tightening it around the head‏. [114]
  6. It is also customary to add the phrase ברוך שם כבוד מלכותו לעולם וע‏ד because of the doubt as too the necessity of the beracha. [115]
  7. If one removes his tefillin to go to the bathroom he recites a new beracha upon putting them back on. [116]
  8. It is prohibited to recite a beracha on stolen tefilin, including tefilin that one bought from a thief. [117]
  9. If one removes his tefilin and puts on a different pair, he recites a beracha upon donning the other pair. [118]
  10. If one removed his tefilin without the intention of putting them back on and then decides to put them back on, he recites another beracha when putting them back on. However, if one removed his tefilin with the intention of putting them back, he does not recites another beracha when putting them back on. [119]

Where the Tefillin are placed

  1. The arm-tefillin is placed on the biceps of the arm, two finger breadths away from the elbow, with the box facing inward towards the heart. [120] After the beracha is said, the arm-tefillin is tightened, then wrapped around the arm seven times. The knot formation and arm binding differ considerably between different traditions. The sephardic minhag is to wrap the seven times outward, away from the body while the ashkenazi minhag is to wrap towards the body. [121] There is a custom to cover the arm-tefillin with the sleeve, in accordance with the verse "And they will be a sign to you...", i.e. to you and not to others. [122]
  2. Next, the head-tefillin is placed on top of the head, "between the eyes" but not lower than the hairline (or if balding, where one's hairline once was). [123] The knot of the head-tefillin sits at the back of the head, upon the part of the occipital bone that protrudes just above the nape. [124] The two straps of the head-tefillin are brought in front of the shoulders, with their blackened side facing outwards. [125]

Wrappings around the hand

  1. The Tefillin Shel Yad should be put on the left arm on the area where the muscle bulges in the lower half of the area between the elbow and armpit. [126] One should make sure not to put the Tefillin within two fingerbreadths of one’s elbow. [127]
  2. The Tefillin should be tilted slightly towards the body so that when the arm is bent the Tefillin faces the heart. [128]
  3. The knot which looks like a Yud on the Tefillin Shel Yad should be facing inward and touching the main Tefillin box. [129]
  4. The Minhag is to put the Maavarta (bridge) part of the Tefillin facing the shoulder. [130] The Maavarta should also be below halfway between the elbow and armpit. [131]
  5. It’s better that the Maavarta is placed above halfway between the elbow and armpit and not have the main box of Tefillin be within 2 fingerbreadths of one’s elbow. [132]
  6. Many authorities are lenient not to require a Netilat Yadayim if one touches the skin in the area where the Tefillin Shel Yad is placed or rub one’s hair while putting on Tefillin Shel Rosh, [133] however, some are strict. [134]
  7. Nothing can interpose between the Tefillin or the area where the straps wrap around the arm and one’s body, however, in the area of the knot one may have an interposition. [135]

Physical Separation/Chatzitza

  1. One should ensure that there is no interposition between the Tefillin Shel Rosh and one's head or the Tefillin Shel Yad and one's arm. [136]
  2. The following are considered items that separate between the Tefillin and one's body: loose dirt [137], water in your hair [138], a wig [139] a toupee [140], and long hair.[141].
  3. A wristwatch does not need to be removed. [142]
  4. If one is unable to remove a bandage or a cast he should wear the tefillin without a beracha. This only applies if the separation is between the body and the boxes, but if the separation is only with the straps the beracha should be recited as usual. [143]

Proper conduct while wearing Tefillin

  1. It is forbidden to laugh or come to lightheartedness while wearing Tefillin because it remove one’s concentration from the Tefillin altogether. [144]
  2. It’s preferable not to remove one’s thought from the Tefillin at all so as not to come to think bad thoughts. However, during Davening and learning one doesn’t need to keep one’s mind on Tefillin since one will certainly maintain a proper seriousness and fear of Hashem. [145]
  3. If one is not engaged in learning or praying and is still wearing the Tefillin one should occasionally touch one's Tefillin in order to keep one's attention focused to the Tefillin. [146] One should touch one's Tefillin Shel Yad and then the Tefillin Shel Rosh. [147]
  4. Some people write the word tefillin in front of them while they wear like in their siddur, in order to maintain awareness of the tefillin while wearing them. [148]
  5. One shouldn't hold the tefillin by their straps, rather they should be held by the boxes. [149]
  6. It is forbidden to go to sleep while wearing Tefillin unless one covered the Tefillin and isn’t with one’s wife. [150] One is permitted to sleep while he is holding tefillin in a bag. [151]
  7. It is customary to fast if one's tefillin fall to the floor even if it was accidental. [152] In some cases instead of fasting, it is better to give charity, or do a taanit dibur, or learn for additional hours, and therefore a posek should be consulted. [153]

Eating while wearing Tefillin

  1. It’s permitted to eat a snack while in tefillin even nowadays when we don’t wear the tefillin all day. [154] Some are strict not to have even a snack, but permit if one is eating or drinking for in intent to wear the tefillin while learning or Davening extra. [155]
  2. The size of a snack is a KeBaytzah of bread or mezonot; so too, one shouldn’t have more than a kebaytzah of intoxsicating drinks. However, drinks that aren’t intoxicating, like coffee and tea, are permitted even more than a kebaytzah. [156]

Borrowing Tefillin

  1. One may borrow somebody's tefillin without receiving the owner's permission, as long as the owner is not there to ask permission from. [157] This doesn't apply if the owner placed them in a place where it's obvious he doesn't want them being used, or if someone uses them on a permanent basis. [158] Also, after borrowing the tefillin one must place them back wherever they were. [159]
  2. One may not remove the borrowed tefillin from the synagogue or the owner's home without permission. [160]
  3. Obviously one may not damage the tefillin [161]
  4. One doesn't however fulfill his obligation with stolen tefillin and cannot recite a beracha on them. [162]

Getting Tefillin Checked

  1. Even though one is not obligated, it is praiseowrthy to have your tefillin checked every year particularly during the month of elul and the aseret yimei teshuva. [163]
  2. If one didn't get his tefillin checked for a long time and later found out they were unkosher, he should increase his torah learning and some say he should take upon himself to also wear Rabbeinu Tam tefillin if he hasn't been already. [164]

Shabbat and Yom Tov

  1. Tefillin are not worn on Shabbat and the major holidays including Pesach, Shavuot, Rosh Hashanah, Yom Kippur and Sukkot. The reason given that these holidays are themselves "signs" which render the use of tefillin, which are to serve as "signs" themselves, superfluous. [165]

Rosh Chodesh

  1. The tefillin are removed before we recite mussaf on Rosh Chodesh. [166]
  2. In the event that one forgot Yaale Viyavo in shacharit but only realized after he removed his tefillin, he should preferably put his tefillin back on and pray shacharit again. If it is too difficult, he can be lenient since he has already fulfilled his obligation. [167]

Purim

  1. In the morning, one should wear his tefillin during the megilla reading even if he has already worn them. [168]

Tisha Be'Av

  1. The minhag is not to put on Tefillin for Shacharit of Tisha BeAv and only put it on for Mincha.[169]

Chol Hamoed

See the full in depth discussion about Tefillin on Chol HaMoed here.

  1. The minhag of some Ashkenazim is to wear Tefillin on Chol HaMoed, however, the minhag in Israel and minhag of Sephardim is not to wear Tefillin on Chol HaMoed. [170]Someone who doesn’t have a minhag should not wear Tefillin on Chol haMoed. [171]
  2. One who wears Tefillin should stipulate before wearing the Tefillin that if there’s an obligation then I wish to fulfill that obligation, and if not, I have no intention of fulfilling the mitzvah with my action. [172]
  3. If one wears Tefillin on Chol HaMoed one shouldn’t wear Tefillin of Rabbenu Tam (even if one usually wears Tefillin of Rabbenu Tam). [173]
  4. Some authorities hold that if some people in the Shul wear Tefillin and others don’t there’s a violation of Lo Titgodidu (don’t cause factions in observance of Torah) and so they advise that one should either find a shul that has your minhag or pray in different locations in the same shul. [174]

Sources

  1. Rambam Sefer HaMitzvot (Aseh 12 and 13). See further in the #Who is obligated? section
  2. The torah mentions Tefillin twice when recalling the The Exodus from Egypt as in Exodus 13:9 it reads "And it shall be for a sign for you upon your hand, and for a memorial between your eyes, that the law of God may be in your mouth; for with a strong hand did God bring you out of Egypt." and Exodus 13:16 "And it shall be for a sign upon your hand, and as totafot between your eyes; for with a mighty hand did God bring us forth out of Egypt." and twice in the first two paragraphs of Kriat Shema as in Deuteronomy 6:8 it says "And you shall bind them as a sign upon your arm, and they shall be as totafot between your eyes." and lastly in Deuteronomy 11:18 "You shall put these words of mine on your heart and on your soul; and you shall tie them for a sign upon your arm, and they shall be as totafot between your eyes."
  3. Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the mitzvah of tefillin, seif 1
  4. Based on the Zohar Vaetchanan 265, the Shulchan Aruch 25:2 rules that one who is careful to wear a Talit Katan should put on the Talit Katan and Tefillin in one's house and then walk to Shul wearing Tefillin and in Shul put on a Talit Gadol.
  5. Halacha Berura (Rav David Yosef, 25:11) quotes the Ari"zal as saying that even if one is wearing a Talit Katan one must put one's Talit Gadol before putting on one's Tefillin at home and adds that it's good to follow this latter opinion.
  6. Mishna Brurah 25:8 and 10, Sh"t Rav Pealim OC 1:4, Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the mitzvah of tefillin, seif 6
  7. Kaf HaChaim 25:17, Piskei Teshuvot 25:6
  8. Piskei Teshuvot 25:6
  9. Ben Ish Chai Vayera #5, Kaf HaChaim 25:18, Halacha Brurah 25:13, Yalkut Yosef (Tefillin 25 note 36)
  10. S"A 30:1
  11. Kaf HaChaim 25:3-4
  12. S"A 30:2
  13. Halichot Olam volume 1 page 29, Mishna Brurah 30:3
  14. Mishna Berura 25:55 based on Magen Avraham OC 25:28 and Shach YD 265:24. Rabbi Chaim Jachter http://koltorah.org/ravj/Minhagim_of_Brit_Milah_1.html testifies that this is the minhag of Rav Reuven and Rav Dovid Feinstein, although Rabbi Jachter himself says that the minhag seems to be that only the father and sandek wear it throughout the bris.
  15. Yalkut Yosef p. 895, Aruch Hashulchan YD 265:38. Kaf Hachayim 25:92 writes that the minhag is for the father, mohel, and sandak to leave their tefillin on for the brit.
  16. S"A 30:2, Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, the time fore donning, seif 2
  17. S"A 30:1
  18. S"A Orach Chaim 37:2, Rambam Hilchot Tefillin 4:26
  19. S"A 25:4, Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the mitzvah of tefillin, seif 16. The gemara in Berachot 14b says that if a person recites the morning shema without tefillin it is as if he is testifying falsely about himself when he says the pasuk that discusses the obligation to wear tefillin while he is not fulfilling it. The Zohar 93b speaks highly of one who prays the amida with his tefillin.
  20. Magen Avraham 66:12, Kitzur S"A 10:22, Kaf Hachayim 25:28
  21. Sh"t Yabia Omer OC 1:4 and he doesn't fall into the category of people criticized by the gemara berachot 14b mentioned above.
  22. Yalkut Yosef 28:2
  23. Yalkut Yosef 28:2
  24. Magen Avraham 30:2.
  25. Shulchan Aruch 30:2, Sh"t Yabia Omer OC 7:7:5.
  26. Kitzur S"A 10:20, Rav Mordechai Eliyahu (comments on Kitzur 10:26)
  27. Kitzur S"A 10:20
  28. Kitzur S"A 10:20
  29. Shulchan Aruch 25:13, Kitzur S"A 10:19, Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 31
  30. Arizal in Shaar Kavanot derush 5 tefillin, Ben Ish Chai Parashat Chayei Sara: halacha 10.
  31. Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 30
  32. Arizal quoted by Ben Ish Chai Chayei Sara 11, Chida in machazik beracha siman 25, Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 32.
  33. Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 33
  34. Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 34.
  35. Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 37.
  36. Ben Ish Chai Chayei Sara: halacha 10.
  37. Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 38
  38. Ben Ish Chai Chayei Sara: Halacha 10, Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 39.
  39. Shulchan Aruch 28:3
  40. Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, distraction from tefilin and their removal, seif 7
  41. Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, distraction from tefilin and their removal, seif 8
  42. Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, distraction from tefilin and their removal, seif 11
  43. S”A 25:1 says that the Talit goes first because we want to increase in Kedusha from Talit to Teffilin.
  44. Mishna Brurah 25:1, Halacha Brurah 25:7, Ben Ish Chai Vayera Halacha 3
  45. S"A 25:1 writes that one must not place the Tefillin above the Talit because otherwise one may take the Tefillin before the Talit. However, Halacha Brurah 25 writes that it's not respectful to the Tefillin to place the Talit above the Tefillin, therefore it should be placed in a separate bag or to the side of the Tefillin.
  46. Mishna Brurah 25:3 writes that the law that one can’t pass up a mitzvah only applies when one intends to do the mitzvah.
  47. This follows clearly from the above Mishna Brurah but is written as an example in Halachot of Tefillin by Rabbi Shlomo Churba (page 7) quoting Or Letzion (vol 2, 44:16).
  48. Kaf HaChaim 25:8 writes that since one doesn’t intend to use the Talit of Shabbat now one is permitted to take the Talit of the weekday even if it’s below.
  49. Rama 25:1 writes that if one has Tefillin but not Talit one shouldn’t wait for the Talit but rather just put on the Tefillin. The Magan Avraham 25:2 understands that this is the case even if there’s no concern that one will miss Sof Zman Kriyat Shema. Mishna Brurah 25:7 agrees. However, the Machaneh Chaim (Mehudra Kama 2), Sh”t Shenot Chaim 36, Kaf HaChaim 25:10, Yalkut Yosef (Sherit Yosef 1 pg 319), and Halacha Brurah 25:10 argue that one should wait to put on the Talit as long as one will not miss the time for Kriyat Shema.
  50. Mishna Brurah (Biur Halacha D”H Vayitztarech) writes that the principle that one should put on Talit before Tefillin is true also in a case where one took off the Talit and Tefillin momentarily and now comes to put on Talit and Tefillin. This is quoted in Yalkut Yosef (Sherit Yosef 1 pg 318), Halacha Brurah (Birur Halacha 25:2), Amudei HaShulchan 10:2, and Divrei Shalom (vol 1 pg 15).
  51. Ben Ish Chai (Vayera 4, Sh”t Rav Poalim 1:4) writes that if someone is only wearing Tefillin and a Talit becomes available, one should remove one’s Tefillin before putting on the Talit. So holds the Sh”t Torah Lishmah 1. However, the Rama 25:1 writes that if one has only Tefillin one should put that on and when one gets a Talit one should don the Talit implying that one doesn’t need to remove the Tefillin in order to put on the Talit. Yalkut Yosef (Sherit Yosef 1 pg 319) agrees.
  52. The S”A 25:1 writes that one should be careful not to put the Tefillin above the Talit in one bag because then one may take the Tefillin first and have to put them on before the Talit. The S”A here holds that since one picked up the Tefillin the principle of not passing up a mitzvah overrides putting the Talit on before the Tefillin. Most achronim rule in accordance with S”A including Mishna Brurah and Halacha Brurah 25:9. However, the Kaf HaChaim 25:10 writes in name of the Arizal that one should always put on the Talit first even in such a case. Therefore, the Sh”t Or Letzion 2:44:16 writes that one should leave the Tefillin and engage in another activity, so that when one returns to the Tefillin one may put on the Talit first according to all opinions. [This advise of engaging in another activity in order to remove the issue of not passing up a mitzvah is sourced in the Magan Avraham 25:4 and Mishna Brurah 25:3.] Even though the Halacha Brurah 25:9 argues that once one is involved in a mitzvah one isn’t allowed to engage in a non-mitzvah, still the Divrei Shalom (vol 1 pg 23), Yalkut Yosef (Sherit Yosef 1 pg 315-7), Rabbi Eli Mansour on dailyhalacha.com, and Halachot of Tefillin (by Rabbi Shlomo Churba pg 8) rule in accordance with the Or Letzion.
  53. Magan Avraham 25:1 argues that the principle of not passing up a mitzvah doesn’t apply if one takes the Tefillin in their bag before taking the Talit. So holds the S”A HaRav 25:3. However, Kitzur S”A 10:2, Maamer Mordechai 25:3, Nehar Shalom 25:1, Nishmat Adam 13:2, Levush 25, Taz 25:10, Eliyah Rabba 25:4, Chaye Adam 13:1, Shalmei Tzibbur (pg 37a), Siddur Bet Ovad (Makom Hanachat Tefillin 1), Kaf HaChaim 25:6, and Mishna Brurah (Biur Halacha 25:1 D”H Shelo Yanichu) rule that the principle of not passing up a mitzvah applies even if the Tefillin are still in their bag.
  54. Mishna Brurah 25:4 writes that the principle of not passing up on a mitzvah applies even to when one mitzvah is in the room that one is in and the other mitzvah is in another room. Therefore the same halacha as when one picks up Tefillin before Talit applies as above.
  55. Mishna Brurah 25:5, Halacha Brurah (Birur Halach 25:2)
  56. Mishna Brurah (Buir Halacha 25) writes that if one is embarrassed to put on the Tefillin first there is a doubt whether one may put on the Talit first. Yalkut Yosef (Sherit Yosef 1 pg 318) writes that since we hold that the principle of not passing up a mitzvah is only derabbanan, we override the Derabbanan with Kavod HaBriot. [whether not passing up a mitzvah is derabbanan or deoraittah is a dispute in the rishonim and achronim, see Yalkut Yosef (Sherit Yosef 1 pg 317-8).]
  57. Kaf Hachayim 25:3
  58. S”A 25:5, Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefillin, seif 1
  59. Mishna Brurah 25:16
  60. S”A 60:4
  61. The Rambam (Sefer HaMitzvot Mitzvah Aseh 12 and 13) and Sefer HaChinuch (421) record this as a mitzvah that applies to every male individual even nowadays. Rambam there says based on the gemara in Menachot 44a that one who is obligated to wear tefillin but doesn't, transgresses eight commandments (4 for the hand and 4 for the head).
  62. S”A and Rama 38:3, Mitzvat Nashim (pg 35). See Targum Yonatan Ben Uziel on Devarim 22:5 who includes a woman wearing Tefillin in the category of Lo Yehey Kli Gever Al Isha.
  63. Shulchan Aruch 34:1, Halacha Brurah 34:1
  64. S"A 34:2-3 rules that that the especially pious should wear both sets, but added that only one commonly known to be especially pious may do so, so as not to appear as arrogant in one's piety. However, Halacha Brurah (Rabbi David Yosef, 34:1) writes that since it has become the practice of many common people to wear both Tefillin of Rashi and Rabbenu Tam it's not considered an issue of arrogance to wear both pairs of Tefillin. Sh"t Yabia Omer OC 3:4 writes that if one has this stringency he should remove the Rashi and place the Rabbeinu Tam before the kedusha of uva litzion.
  65. Halacha Brurah 34:2. Chacham Ben-zion Abba Shaul Sh"t Or Litzion 2:13:11 also writes that sephardim should only wear Rabbeinu Tam tefillin after marriage.
  66. Ben Ish Chai Vayera 24. Rav Ovadia Yosef in Halichot Olam volume 1 page 26 says that this is only if the person has prayed something in between but if he remembers immediately no beracha should be recited.
  67. S"A 33:3
  68. S"A 32:39
  69. Halacha Berura 32:148
  70. S"A 32:1
  71. Rama 32:1
  72. S"A 32:2
  73. S"A 32:12
  74. S"A 32:19
  75. S"A 32:5. See Mishna Brurah 32:18 who quotes the Pri Megadim that preferably one shouldn't have a sofer who writes with the right hand and does other activities with the left hand or the opposite.
  76. S"A 32:3
  77. S"A 32:22
  78. S"A 32:30 and S"A 39:1
  79. Rambam Hilchot Tefillin 1:13
  80. S:A 27:8. Mishna Berura 27:31 says the custom nowadays is seven times.
  81. Mishna Berura 27:44
  82. Mishna Berura 27:41
  83. Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, place of donning and how to don, seif 24, S"A 33:3 says that this is a halacha limoshe misinai. Mishna Berura 33:19 says they should be as black as a raven and adds that one should be especially careful at the spot where one tightens the tefillin as the paint there wears off easily.
  84. S"A 33:4. Rama writes that they are not even kosher bidieved if they are not colored black for the sake of the mitzva. Biur Halacha 33:4 "pasul" says they should be repainted with the proper concentration.
  85. Mishna Berura 33:23
  86. Rav Yosef Shalom Elyashiv and Rav Chaim Pinchas Scheinberg quoted in Mivakshei Torah volume 4 page 415.
  87. S"A 27:11. Mishna Berura 27:38 says that one really only has to make sure that the part around the head and around the arm muscle has the black on the outside but it looks nicer to make sure the whole thing is that way.
  88. Kitzur S"A 10:13 writes that the minimum width of the Tefillin straps is the width of a barley kernel. Rav Mordechai Eliyahu (comments on Kitzur S"A 10:16) writes that the size of a barley is one centimeter.
  89. S"A 27:1, 27:6 based on gemara Menachot 37a. Halacha Berura 27:21 writes that someone who writes with one hand and performs all other activities with another is praiseworthy if he places on the other hand in addition without a beracha. This is also the ruling of Rabbi Eli Mansour http://www.dailyhalacha.com/displayRead.asp?readID=1101
  90. Mishna Berura 27:22
  91. Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 18. Ben Ish Chai Vayera Halacha 6 says that this order has great kabbalistic significance as well. Chazon Ovadia Chelek 2 page 209 says that the order relates to the idea of naase vinishma (Shemot 24:7, that the Jews accepted to observe the commandments and only afterwards understand them, because the tefillin shel yad represent our actions and the shel rosh represent our understanding
  92. Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 20
  93. Sh"t Yechave Daat 4:36, Chesed La'alafim 25:4.
  94. Kaf Hachayim 25:68, Chesed La'alafim 25:11, Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 18
  95. Sh"t Yechave Daat 4:36
  96. Od Yosef Chaim Vayera 25
  97. Chida in Machazik Beracha 22, Kaf Hachaim Palachi 10:8 based on Tosafot Menachot 75, agianst the tosefta Berachot 6:10 which says that when one makes tzitzit or tefillin, to make a shehecheyanu which is brought down by the Rambam Hilchot Berachot 11:9. However, the Biur Halacha 22:1 and Kaf Hachayim 22:2 both suggest to put on a new garment and say the shehecheyanu on that immediately before putting on tefillin for the first time, while having in mind for the tefillin, as well, to cover the safek.
  98. Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, place of donning and how to don, seif 10
  99. Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, place of donning and how to don, seif 11
  100. Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, place of donning and how to don, seif 12
  101. S"A 25:6, Kaf Hachayim 25:42
  102. Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, one who only has one tefila, seif 2
  103. Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, one who only has one tefila, seif 1
  104. S"A 25:8
  105. Kaf Hachayim 25:49
  106. S"A 25:5
  107. S"A 25:9, Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefillin, seif 3
  108. S"A 25:10, Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefillin, seif 14
  109. Kaf Hachayim 25:63-64, Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefillin, seif 14
  110. Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefillin, seif 15
  111. Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefillin, seif 15
  112. S"A 25:9, Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefillin, seif 3
  113. S"A 25:10
  114. Rama 25:5, Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefillin, seif 3. Kaf Hachayim 25:40 writes that a sephardi who hears the berachah on the shel rosh is permitted to answer amen in his head.
  115. Rama 25:5
  116. Sh"t Yabia Omer 8:2
  117. Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 30
  118. Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 23
  119. Kitzur S"A of Rav Rephael Baruch Toledano, siman 10, laws of the donning of tefilin, seif 21
  120. S"A 27:1
  121. Kaf Hachayim 25:67, Halacha Berurah 27:27
  122. Ben Ish Chai Vayera 15 based on Shaar Hakavanot Derush 5 of Tefillin
  123. Ben Ish Chai Chayei Sarah Halacha 1
  124. S"A 27:10
  125. S"A 27:11
  126. S”A 27:1, Mishna Brurah 27:4
  127. Piskei Teshuvot 27:1 quoted Tefillah LeMoshe 7:7
  128. S”A 27:1
  129. S”A 27:2. Ben Ish Chai Vayera Halacha 15 says that according to Kabbalah the yud should be tocuhing the box even when the tefillin are wrapped in their boxes. Shaare Teshuva OC 27:2 quotes the Shalmei Tzibbur saying the same.
  130. S”A 27:3
  131. Piskei Teshuvot 27:1 inferring from Mishna Brurah 27:34
  132. Piskei Teshuvot 27:1 quoting Shraga HaMeir 6:46
  133. Halichot Shlomo (Tefillah 4:3), Sh”T Shelmat Chaim 39-40, Kaf HaChaim 4:59
  134. Piskei Teshuvot 27:2 quoting Dinim Vehanahot LeChazon Ish 3:10 and Chelkat Yehoshua 6:7
  135. S”A 27:4, Mishna Brurah 27:16
  136. Bet Yosef 27:4 quotes a dispute between the Rosh (Hilchot Tefillin 18, Sh"t HaRosh 3:4) who says that that there may not be any interposition between the Tefillin Shel Rosh and one's head and the Tefillin Shel Yad and one's arm and the Rashba (Megillah 24b s.v. Sipah) who allows putting Tefillin on top of an interposition. [See the Sh"t HaRashba Sh"t 3:282 where at first he acknowledges the explanation of the Rosh but comments that this is the halacha lo lemaaseh and continues to explain his own explanation until he concludes that his approach is the halacha.] S"A 27:4 rules like the Rosh. The Rama 27:4 says that this only applies for the batim (boxes) themselves and not the retzuot (straps) but Mishna Berura 27:16 says that one should not be lenient in this. S"A 27:5 says though that if one needs to lenient for some medical reason and needs a head covering, he can wear them above a thin hat. The Rama there says in that case he can't say a beracha.
  137. Mishna Berura 27:14
  138. Shaare Teshuva 27:6 says one should make sure to dry his hair well if he wet it before putting on the tfillin, both because it could damage the tfillin, and because the water itself could be considered a separation.
  139. Mishna Berura 27:16
  140. Iggerot Moshe OC 4:40:18 says that if removing it in public would embarrass the person that he should put on Tefillin in private with a beracha without the toupee and then go to shul and put it on there over the toupee without a beracha but hair that is transplanted is considered part of the head and is not a problem. see Daily Halacha (by Rabbi Mansour).
  141. Machatzit Hashekel 27 and Kitzur Shulchan Aruch 10:6 say that although short hair would not be a problem, excessively long hair could be. The Pri Megadim 27 says that hair which is not located in its place of growth but rather has been brushed across from another part of the head, constitutes a chatzitza in tefillin. Mishna Berura 27:14-15 agrees to this, and says that it also could be hard to keep the Tefillin lined up between the eyes and at the right height with long hair. Aruch Hashulchan 27:14 and Rav Ovadia (Yechave Daat 2:2(22)) hold that there is what to rely on regarding really long hair. The Aruch Hashulchan says only hair moved from another place would be problematic.
  142. Sh"t Yechave Daat 3:2, Sh"t Yabia Omer 2:2 and Rav Ovadia writes that one who is stringent will be blessed. Emes liYaakov OC 27:note 31 says even though the Rama 27:4 based on the Teshuva of the Rashba 1:827 says one doesn't need to worry about barriers except for between the skin and the boxes, that if one is accustomed to removing it he should continue doing so, as there are some poskim who are stringent on barriers on any part of the arm or head tefillin
  143. Sh"t Yabia Omer OC 2:2
  144. Chaye Adam 14:15 and Mishna Brurah 44:3
  145. Mishna Brurah 44:3 writes that it’s preferable not to remove one’s mind from the Tefillin at all while wearing them so as not to comet to bad thoughts. Biur Halacha (D”H yashan) explains (based on Or Zaruha 585) that during Tefillah and learning one will certainly have a fear of heaven and not come to lightheartedness.
  146. S"A 28:1 writes that occasionally one should touch one's Tefillin in order to make sure that one's attention doesn't shift from thinking about the Tefillin. Mishna Brurah 28:2 writes that while one is praying one doesn't need to touch one's tefillin for this purpose. Mishna Brurah 44:3 adds that the same is true while one is learning.
  147. S"A 28:1. Mishna Brurah 28:3 explains that this order was chosen in order that when one's hand (the one not wearing Tefillin) touches the Tefillin it doesn't pass over the closer mitzvah of touching the Shel Yad first.
  148. Ben Ish Chai Chayei Sara Halacha 17 because Menachot 36a says that one must have awareness of his tefillin as long as he wears them because of their great holiness.
  149. S"A 40:1, Ben Ish Chai Chayei Sara 13, Chesed La'alafim 40:1
  150. S”A 44:1. Halacha Berurah 44:1 says that if you sleep for less than 54 seconds or if you simply rest your head in your lap it is also permitted.
  151. Kaf Hachayim 44:7
  152. Mishna Berura 40:3, Iggerot Moshe OC 3:3. Daat Torah 44:1 however quotes poskim who say that fasting is only necessary if they fell because of negligence. Baer Heitev 571:1 and Kaf hachayim 40:6 write that it is preferable for one to fast on the day that the tefillin fell. Kaf Hachayim 40:7 writes that one doesn't need to fast at all if the tefillin fell from less than 3 tefachim high.
  153. Az Nidberu 8:20 and Rivevos Efrayim 6:14 quoting the Steipler. Daat Torah 44:1 writes that if fasting is too hard for somebody they can be lenient and give charity and this is the case for someone who is physically weak, a torah scholar or teacher as well as somebody who is active in the community. This is also the opinion of the Chida in Chayim Sho’al 12, Ben Ish Chai Parashat Chayei Sarah halacha 18, Sh"t Yabia Omer 2:28
  154. S”A 40:8 writes that it’s permitted to have a snack while wearing tefillin. Mishna Brurah 40:19 quotes the Shulchan Shlomo who has a doubt whether this applies nowadays since we don’t wear tefillin all day. However, the Sh”t Teshurat Shai 215 argues that we shouldn’t extend a prohibition based on our own logic.
  155. Piskei Teshuvot 40:8
  156. Mateh Yehudah quoted in Mishna Brurah, kaf hachaim 40:35
  157. Rama 14:4, Chesed La'alafim 14:4 based on the idea that somebody is happy to have his belongings used for a mitzva. Kaf Hachayim 14:19 says this only applies if the owner is not present to ask permission from him.
  158. Kaf Hachayim 14:27
  159. Kaf Hachayim 14: 22
  160. Chesed La'alafim 14:4
  161. Kaf Hachayim 14:22
  162. S"A 25:12, Mishna Berura 25:54
  163. Sh"t Yechave Daat 1:49, http://www.dailyhalacha.com/displayRead.asp?readID=356
  164. Sh"t Otzrot Yosef 3:8
  165. S"A 31:1, Mishna Berura 31:1
  166. S"A 28:13 Kaf Hachayim 25:94. Beit Yosef 25: "ubayom" writes that since in kedusha we recite that the angels should give Hashem a crown it would be improper for us to show our crowns, the tefillin. see Kaf Hachayim 25:94 for Kabbalistic reasons behind the removal of tefillin for mussaf.
  167. Sh"t Yechave Daat 6:6. The Chida in Machazik Beracha 25:13 writes that according to kabbalah one may not put his tefillin back on after he recited mussaf unless he hasn't yet put tefillin on that day.
  168. Mishna Berura 693:7, Magen Avraham 693:2, Baer Heitev 693:3. This is based on the gemara in Megilla 16b which says that the word viykar in Esther 8:16 relates to the tefillin that after the death of Haman the Jews continued to put on tefillin. Moed Likol Chai 31:88 says that one the word viykar is read one should kiss his tefillin.
  169. S"A 551:1
  170. S”A and Rama 31:2, Sh”t Yabea Omer 3:5,(3), Ben Ish Chai Parashat Vayera Halacha 12.
    • Some rishonim forbid tefillin to be laid on Hol HaMoed as they consider the days have the same status as a festival which in itself constitutes a "sign" making the laying of tefillin unnecessary. These Rishonim include: Baal Halachot Gedolot (cited by Tosafot Moed Katan 19a s.v. Rabbi Yosi), Rambam (Hilchot Yom Tov 7:13; explained by Kesef Mishna), Rashba (Sh"t HaRashba 1:690), and Ri (cited by the Hagahot Maimoni Hilchot Tefillin 4:9).
    • Other rishonim argue and hold that Chol HaMoed does not constitute a "sign" in which case tefillin must be laid on Hol HaMoed. These Rishonim include: Rambam, Rosh (Hilchot Tefillin 16), Or Zarua 1:589, and Maharam of Rothenburg cited by the Mordechai.
    • The Bet Yosef writes that the minhag of Sephardim is not to wear Tefillin on Chol HaMoed based on Kabbalistic sources. This is also the opinion of the Vilna Gaon (Bi'ur ha-Gra Orach Chayim 31:2 s.v. V’yesh Omrim).
    • The Tur (Siman 31) quotes some rishonim who are uncertain whether one must lay tefillin on Chol HaMoed and concludes that one should wear Tefillin without a Bracha. These opinions include the Ritva (Eruvin 96a), Smag (Eruvin 153), Meiri (Moed Katan 18b), and Taz 31:2. The Mishna Berura recommends that on Hol Hamoed one make a mental stipulation before donning tefillin: If I am obligated to don tefillin I intend to fulfill my obligation and if I am not obligated to don tefillin, my doing so should not be considered as fulfilling any obligation; and that the blessing not be recited. The Rama writes that the Ashkenazic custom is to wear Tefillin with a Bracha which is to be made in an undertone. See further: Rabbi Jachter on koltorah.org.
  171. Sh”t Teshuvot VeHanhagot 2:332
  172. Mishna Brurah 31:8
  173. Mishna Brurah 31:8
  174. Kitzur S"A 10:25 writes that there is an issue of Lo titgodedu for some people in the shul to wear Tefillin on chol hamoed and others not to wear Tefillin. Hilchot Chol HaMoed Zichron Shlomo (in the hebrew section pg 39-40) has a letter from Rav Moshe Feinstein, dated Kislev 5737, stating clearly that one should follow the minhag of the Shul and if the minhag is to wear Tefillin one should also. However, Rav Moshe Feinstein in Sh”t Igrot Moshe O”C 5:24 (pg 79 D”H Al Kol Panim) dated Kislev 5743, writes that in crowded shuls where there’s many who wear Tefillin and many who don’t there’s no issue of Lo Tasu Agudot since it’s clear that there’s two different minhagim. However, Rav Moshe adds that preferably someone who is praying in a shul that wears Tefillin should also wear Tefillin. Sh”t Teshuvot VeHanhagot 2:332 holds that there’s no real issue of Lo Titgodedu but preferably one should be concerned for those who hold that it’s an issue. Rabbi Schachter on yutorah.org (min 36-7) ruled that it is an issue for some people in one minyan to wear Tefillin and others not to wear Tefillin, however, two minyanim in one shul may not be an issue.