Boneh: Difference between revisions

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The basic definition of Boneh is creating or assembling any kind of structure. In order to be culpable for Boneh, one need not even build the entire structure; even contributing to the building process can be enough to be culpable. The classic example of the av melacha of Boneh would be the construction of a permanent structure, like a house.<ref> Rav Eli Baruch Shulman highlighted a Rashi in Beitzah, 11b (s.v. d’ein binyan b’keilim) that says the reason that there is no binyan by keilim (according to Beis Hillel) is because Boneh applies only to binyan batim.  </ref> The amount of Boneh that one must do to be culpable is any amount.<ref> Mishnah, Shabbos 102b. The Gemara says this is learned from the Mishkan where they would fill up wormholes in the kerashim with melted lead. </ref>
== Two Primary Principles of Boneh ==
 
=== Two Primary Principles of Boneh ===
# Creating a shelter ("asiat ohel") <ref>Rambam 7,6 This was done in the Mishkan when the walls and rooftops were assembled. </ref>
# Creating a shelter ("asiat ohel") <ref>Rambam 7,6 This was done in the Mishkan when the walls and rooftops were assembled. </ref>
# Assembling pieces to create a form or structure ("me'dabek chalakim") <ref> Rambam 11,13 and 22,27 This was done in the Mishkan when the planks were assembled. </ref>
# Assembling pieces to create a form or structure ("me'dabek chalakim") <ref> Rambam 11,13 and 22,27 This was done in the Mishkan when the planks were assembled. </ref>
# Performing either of these actions constitutes a Torah-prohibition, as both of these actions were done in the construction of the Mishkan.  An action that involves both of these principles is the av melacha of Boneh.<ref>Rambam as explained by the Even Ha'ezel 10,17. For instance, Rambam Hilchos Shabbos 7:6 writes that making cheese on Shabbos is a violation of Boneh, as it involves combining pieces together to create a new object.</ref> Pitching a tent, even if it does not require assembly, would be asiyas ohel and a toldah of Boneh.<ref>  Rambam, Hilchos Shabbos, 10:13</ref>


===Building shelters and tents===
Performing either of these actions constitutes a Torah-prohibition, as both of these actions were done in the construction of the Mishkan.  An action that involves both of these principles is the av melacha of Boneh. <ref>Rambam as explained by the Even Ha'ezel 10,17. </ref>
# Setting up a functional installation attached to the ground is a violation of Boneh (building). For example, it's forbidden to erect a post in the ground or tomato stake to support a tomato plant.<ref>39 Melachos (Rabbi Ribiat, vol 4, pg 1005) </ref>  
==Building shelters and tents==
# Laying bricks, setting up rocks as a border to a garden, putting down rocks for landscaping purposes (like chips around a tree or on a road or path), and building a fence are all violations of Boneh (building).<ref> 39 Melachos (Rabbi Ribiat, vol 4, pg 1006) </ref>  
# Setting up a functional installation attached to the ground is a violation of Boneh (building). For example, it's forbidden to erect a post in the ground or tomato stake to support a tomato plant. <ref>39 Melachos (Rabbi Ribiat, vol 4, pg 1005) </ref>  
# Building a [[Sukkah]] is forbidden as Boneh (building).<ref>39 Melachos (Rabbi Ribiat, vol 4, pg 1010) </ref>  
# Laying bricks, setting up rocks as a border to a garden, putting down rocks for landscaping purposes (like chips around a tree or on a road or path), and building a fence are all violations of Boneh (building). <ref> 39 Melachos (Rabbi Ribiat, vol 4, pg 1006) </ref>  
# Building any functional land structure whether it is permanent or temporary is forbidden.<ref>39 Melachos (Rabbi Ribiat, vol 4, pg 1012) explains that if it is a construction that can't be taken apart and only can be broken then it's forbidden biblically whether it is permanent or temporary and if it is a assembly that can be dismantled then building it for temporary purposes (less than 7 days) is a rabbinic violation and building it for permanent purposes is biblical violations. </ref>  
# Building a [[Sukkah]] is forbidden as Boneh (building). <ref>39 Melachos (Rabbi Ribiat, vol 4, pg 1010) </ref>  
# However, using an object as it is normally used such as closing a door is permitted. Similarly one may replace a removable paper towel roll or removable toilet paper holder.<ref>39 Melachos (Rabbi Ribiat, vol 4, pg 1014-5) </ref>  
# Building any functional land structure whether it is permanent or temporary is forbidden. <ref>39 Melachos (Rabbi Ribiat, vol 4, pg 1012) explains that if it is a construction that can't be taken apart and only can be broken then it's forbidden biblically whether it is permanent or temporary and if it is a assembly that can be dismantled then building it for temporary purposes (less than 7 days) is a rabbinic violation and building it for permanent purposes is biblical violations. </ref>  
# However, using an object as it is normally used such as closing a door is permitted. Similarly one may replace a removable paper towel roll or removable toilet paper holder. <ref>39 Melachos (Rabbi Ribiat, vol 4, pg 1014-5) </ref>  
===Adding on to a existing structure===
===Adding on to a existing structure===
# Just as it is forbidden to create even a temporary structure on [[Shabbat]], it is forbidden to add onto a permanent structure even if the addition is temporary.<ref>Kitzur Shulchan Aruch 80:67</ref>
# Just as it is forbidden to create even a temporary structure on [[Shabbat]], it is forbidden to add onto a permanent structure even if the addition is temporary.<ref>Kitzur S"A 80:67</reF>
# In previous centuries it was common to have dirt floors and it would be forbidden to put down new sand as it is left as a permanent layer of the floor and is a violation of Boneh (building).<ref>39 Melachos (Rabbi Ribiat, vol 4, pg 1015) </ref>   
# In previous centuries it was common to have dirt floors and it would be forbidden to put down new sand as it is left as a permanent layer of the floor and is a violation of Boneh (building). <ref>39 Melachos (Rabbi Ribiat, vol 4, pg 1015) </ref>   
# Putting down a large area rug which is meant to remain there for more than 7 days is forbidden as it is considered something that can become nullified to the floor.<ref>39 Melachos (Rabbi Ribiat, vol 4, pg 1017 and 1019) explains that since it is only a loose addition it doesn't become nullified to the floor unless it is put there for 7 days. See Dor Hamelaktim v. 4 p. 2040 who quotes Shabbos Home (Artscroll, p. 423) as being lenient unless the carpet is from wall to wall.</ref>  
# Putting down a large area rug which is meant to remain there for more than 7 days is forbidden as it is considered something that can become nullified to the floor. <ref>39 Melachos (Rabbi Ribiat, vol 4, pg 1017 and 1019) explains that since it is only a loose addition it doesn't become nullified to the floor unless it is put there for 7 days. </ref>  
# Tiling a floor, wallpapering a room, installing a doorknob are all forbidden as adding to an existing structure.<ref>39 Melachos (Rabbi Ribiat, vol 4, pg 1016-7) </ref>  
# Tiling a floor, wallpapering a room, installing a doorknob are all forbidden as adding to an existing structure. <ref>39 Melachos (Rabbi Ribiat, vol 4, pg 1016-7) </ref>  
# According to many poskim it is permitted to rehang a picture that fell on [[Shabbat]] as long as the picture isn't expensive and rare.<ref>39 Melachos (Rabbi Ribiat, vol 4, pg 1019) explains that that according to many opinions hanging a picture isn't a violation of adding to a existing structure because it retains it's own function similar to putting a potted plant on the floor or a vessel in the breakfront even though it will remain for a long time. On pg 1038 he writes that it's permissible to rehang it unless it is a expensive and rare painting because it would be [[muktzah]] and according to some poskim it's [[muktzeh]] once it was attached during the onset of [[Shabbat]]. </ref>  
# According to many poskim it is permitted to rehang a picture that fell on [[Shabbat]] as long as the picture isn't expensive and rare. <ref>39 Melachos (Rabbi Ribiat, vol 4, pg 1019) explains that that according to many opinions hanging a picture isn't a violation of adding to a existing structure because it retains it's own function similar to putting a potted plant on the floor or a vessel in the breakfront even though it will remain for a long time. On pg 1038 he writes that it's permissible to rehang it unless it is a expensive and rare painting because it would be [[muktzah]] and according to some poskim it's [[muktzeh]] once it was attached during the onset of [[Shabbat]]. </ref>  
# One should not replace a [[mezuzah]] that fell on [[Shabbat]] because of issues of adding to an existing structure and [[muktzeh]]. However, if it is [[lying]] on the floor one pick it up in a abnormal way such as by using the palms of both hands.<ref>39 Melachos (Rabbi Ribiat, vol 4, pg 1038) </ref>
# One should not replace a [[mezuzah]] that fell on [[Shabbat]] because of issues of adding to an existing structure and [[muktzeh]]. However, if it is [[lying]] on the floor one pick it up in a abnormal way such as by using the palms of both hands. <ref>39 Melachos (Rabbi Ribiat, vol 4, pg 1038) </ref>  
 
==Digging and filling a hole==
===Digging and filling a hole===
# When people used to have dirt floors, if there was a hole in the floor, filling it up would be a violation of Boneh. <reF>In Gemara ([[Shabbat]] 73b) Rava says that if one fills in a hole with dirt inside the house, one has violated Boneh. Rambam ([[Shabbat]] 10:12) rules that flattening the ground indoors, by flattening a mound or filling in a hole is a violation of Boneh. Mishna Brurah 337:6 writes that if one intentionally fills the holes when sweeping one would violate Boneh.</ref>
# When people used to have dirt floors, if there was a hole in the floor, filling it up would be a violation of Boneh. <reF>In Gemara ([[Shabbat]] 73b) Rava says that if one fills in a hole with dirt inside the house, one has violated Boneh. Rambam ([[Shabbat]] 10:12) rules that flattening the ground indoors, by flattening a mound or filling in a hole is a violation of Boneh. Mishna Brurah 337:6 writes that if one intentionally fills the holes when sweeping one would violate Boneh.</ref>


===Assembling objects===
==Assembling objects==
# One of the biggest limitations in the melacha of Boneh is its application to keilim, moveable vessels that are not attached to the ground. ''Ein binyan b’keilim'' is a concept that appears in several Gemaras<ref> Shabbos 102b, 122b and Beitzah 11b are some examples  </ref> and is the subject of an enormous machlokes<ref> According to Rashi Shabbat 74b s.v. ve’iy there is no issue of boneh when constructing a utensil and only if it is attached to the ground is it boneh, altogether either way it’ll be macah b’patish. However, Tosfot s.v. chavita argues that creating a kli is also boneh as the gemara Shabbat 102b cites the opinion of Rav who holds that assembling a shovel is boneh. Maginei Shlomo Shabbat 102b answers Tosfot’s question based on the Ramban (Milchamot Shabbat 37a) who explains that many other amoraim disagree with Rav and hold that there's no boneh in constructing utensils. See Peni Yehoshua Shabbat 74b for another answer. Nonetheless, the conclusion of most rishonim is that it is boneh to create a utensil from scratch like Tosfot. This is the opinion of Baal Hameor (on Rif Shabbat 37a s.v. ayil), Ran (37a s.v. makshu), Ramban (102b s.v. rav), and Rashba (102b s.v. hay). For further reading, the sefer Binyan Shabbos (Part 1) dedicates several chapters to this topic. </ref> among the rishonim, achronim, and poskim. Despite the all-encompassing implication of “ein binyan b’keilim,” most rishonim and poskim say that there are situations when one can make a kli and be chayav on a biblical level for Boneh. The general consensus among most rishonim is that Boneh does apply to keilim when one makes a kli in its entirety<ref> Chiddushei HaRamban, Shabbos 102b, s.v. Rav Amar. Also see Tosfos, Shabbos 74b, s.v. Chavisa  </ref> or if one uses strength and craft (''chizuk v’umanus'') in the process of making it.<ref> Tosfos, Shabbos 102b, s.v. Hai. It should be noted that Rashi (Shabbos 47a, s.v. Chayav Chatas; Beitza 11b, s.v. d’ein) seems to be of the opinion that there is no concept of binyan b’keilim at all. However, Rashi says (Shabbos 47a) that there are cases, like making a kli in its entirety, when one would be chayav for makeh b’patish. </ref>
# Making a earth vessel such as an oven or barrel before it is hardened in the kiln is a violation of Boneh. <ref>Rambam ([[Shabbat]] 10:13)</ref>
# Making a utensil loosely is permitted if it usually is made loosely, but it is forbidden to fit it together tightly or even loosely if it usually fits together tightly.<ref>The Gemara Shabbat 47a cites a dispute whether constructing a bed in a loose fashion is permitted but everyone agrees if it is tight it is forbidden. The Shulchan Aruch 313:6 rules that if it is loose it is permitted. Rama 313:6 writes that it is only permitted to assemble a utensil in a loose fashion if it is normally loose, however, if it is usually tight and you just made it loose once there is a concern you'll make it tight this time. The Bet Yosef cites this concept from the Hagahot Ashuri Shabbat 3:23 and infers it from the Rambam 22:26.</ref> For example, constructing an army cot from pieces that come apart on Shabbat or Yom Tov is forbidden since the legs fight in tightly.
# One shouldn't untangle [[Tzitzit]] strings on [[Shabbat]] because this involves Tikkun Kli (fixing of a vessel). <ref>Shemirat [[Shabbat]] Kehilchata 15:94</ref>
## If a shtender is made of multiple pieces it is forbidden to construct or reassemble if it is apart unless it is so loose that the pieces would wobble in their sockets.<ref>Shulchan Aruch 313:6 cites a dispute whether constructing a cup is similar to constructing a bed. Mishna Brurah 313:45 explains the dispute is whether a cup which is which put together tightly but not hammered together is judged like a bed or not. Mishna Brurah 313:46 writes that initially we are strict to assume that it is the same halacha as a bed but if there's a need of Shabbat we are lenient. Lastly, Mishna Brurah 313:47 equates a shtender made of pieces to a cup. Shulchan Aruch 313:6 only permits constructing a bed if it is loose. Biur Halacha 313:6 s.v. darka cites the Raavad who explains that loose means that it is so loose that it would wobble in its socket.</ref>
# One shouldn't make a paper boat or paper hat by folding the paper since this involves creating a vessel. <ref>Shemirat [[Shabbat]] Kehilchata 16:21</ref>
# Covering a pot with a cover tightly is permitted since it is meant to be opened and closed all the time.<Ref>Mishna Brurah 313:45</ref>
# One may fold a napkin regularly, but one shouldn't fold it in a special shape, such as is normally done in honor of guests. <ref>Shemirat [[Shabbat]] Kehilchata 28:17</ref>
# A shtender which can have its height adjusted with a knob but isn't frequently adjusted, according to many poskim it is permitted to adjust the height on Shabbat, and according to others it is forbidden.<ref>Rav Shlomo Zalman Auerbach in Meor HaShabbat (v. 2 Letter 32:3) holds that it is permitted to adjust the height of a shtender with a knob which tightens and loosens, even if it is only infrequently adjusted, since the shtender is like covering and uncovering a pot, which was a utensil before and after the use. However, Minchat Yitzchak 9:38 disagrees since the shtender is only infrequently adjusted unlike a pot cover. See Dirshu (Mishna Brurah 313:45) and [http://ph.yhb.org.il/01-15-06/ Peninei Halacha Shabbat 15:6].</ref>
# Making an earth vessel such as an oven or barrel before it is hardened in the kiln is a violation of Boneh.<ref>Rambam ([[Shabbat]] 10:13)</ref>
# One shouldn't untangle [[Tzitzit]] strings on [[Shabbat]] because this involves Tikkun Kli (fixing of a vessel).<ref>Shemirat Shabbat Kehilchata 15:94</ref>
# One shouldn't make a paper boat or paper hat by folding the paper since this involves creating a vessel.<ref>Shemirat Shabbat Kehilchata 16:21</ref>
# One may fold a napkin regularly, but one shouldn't fold it in a special shape, such as is normally done in honor of guests.<ref>Shemirat Shabbat Kehilchata 28:17</ref> Some are lenient.<reF>Rivevot Efraim 1:223:8 quoting Rav Moshe Feinstein. See also Dor Hamelaktim v. 2 p. 1214 for more opinions.</ref>


==In the Mishkan==
==Building a tent==
# The melacha of Boneh was done in the Mishkan when they placed the kerashim, the planks that made up the walls, into their sockets.<ref> Yerushalmi Shabbos, 7th and 12th Perek </ref>
# It’s forbidden to set up the roof of a tent, permanent or temporary, on [[Shabbat]], even if one there are no walls. Additionally, it’s forbidden to add onto a tent structure, however, a temporary addition to an existing structure is permitted. <Ref>Shemirat [[Shabbat]] KeHilchata 24:1-2 </ref>
==Building a Tent==
# It is forbidden to set up a tent out of blankets even if it is meant to be temporary. <Ref>Menuchat Ahava (vol 3, 23:8), Shemirat [[Shabbat]] KeHilchata 24:1-2 </ref>
# It is forbidden to set up the roof of a tent, permanent or temporary, on [[Shabbat]], even if one there are no walls. Additionally, it’s forbidden to add onto a tent structure, however, a temporary addition to an existing structure is permitted.<Ref>Shemirat Shabbat KeHilchata 24:1-2 </ref>
# It is forbidden to set up a tent out of blankets even if it is meant to be temporary.<Ref>Menuchat Ahava (vol 3, 23:8), Shemirat Shabbat KeHilchata 24:1-2 </ref>
===Adding an existing structure===
===Adding an existing structure===
# It’s permitted to make a temporary addition to an existing tent. Therefore, if there is a [[Tefach]] of roof already opened before [[Shabbat]] one may continue to add a temporary addition to that roof, but one should only add to the existing roof starting from the side which is already roofed. <Ref>Shemirat Shabbat KeHilchata 24:6 </ref>
# It’s permitted to make a temporary addition to an exisiting tent. Therefore, if there is a [[Tefach]] of roof already opened before [[Shabbat]] one may continue to add a temporary addition to that roof, but one should only add to the existing roof starting from the side which is already roofed. <Ref>Shemirat [[Shabbat]] KeHilchata 24:6 </ref>
# One may not put a mat on top of polls or walls even if the mat is rolled up if there is a [[Tefach]] of width to the roll of the mat. Even if the rolled mat was put there before [[Shabbat]] one may not unroll it on [[Shabbat]], however, if a [[Tefach]] of the mat was already unrolled then it is permitted to continue to unroll it on [[Shabbat]].<ref>Shemirat Shabbat KeHilchata 24:5, 7 </ref>
# One may not put a mat on top of polls or walls even if the mat is rolled up if there is a [[Tefach]] of width to the roll of the mat. Even if the rolled mat was put there before [[Shabbat]] one may not unroll it on [[Shabbat]], however, if a [[Tefach]] of the mat was already unrolled then it is permitted to continue to unroll it on [[Shabbat]]. <ref>Shemirat [[Shabbat]] KeHilchata 24:5, 7 </ref>
===Roof Which is Attached===
===Roof which is attached===
# If a roof was attached before [[Shabbat]] with hinges or another permanent connection it is permitted to spread out that roof (which was attached) on [[Shabbat]].<Ref>Shemirat Shabbat KeHilchata 24:13 </ref>
# If a roof was attached before [[Shabbat]] with hinges or another permanent connection it is permitted to spread out that roof (which was attached) on [[Shabbat]]. <Ref>Shemirat [[Shabbat]] KeHilchata 24:13 </ref>
{{Stroller Hood on Shabbat}}
# It is permitted to open the hood of a baby carriage if it was attached from before [[Shabbat]], however, it was attached on [[Shabbat]] one may not spread it one [[Shabbat]]. Once the hood is open it is permitted to add a temporary additional roof but one should start to add to that roof from the side which is already covered (by the hood). <Ref>Shemirat [[Shabbat]] KeHilchata 24:13 </ref>
 
==Practical Examples of Building==
===Folding table===
# It is permitted to open a folding table.<Ref>Shemirat Shabbat KeHilchata 24:23 </ref>
# It’s permitted to add a table leaf to extend a table on [[Shabbat]] for temporary use,<ref>Shemirat Shabbat KeHilchata 24:23, Rivivot Ephraim 1:222:3, Practical Laws of [[Shabbat]] (Rabbi Rafeal Soae, vol 2, pg 146). Rav Elyashiv (Ashrei Haish 2:18:17) writes that it is permitted in a case of great need, otherwise it should be extended before Shabbat. Chazon Ovadia (v. 5, p. 315) writes that it is permitted to add a leaf to a table and it doesn’t involve constructing an ohel, since part of the ohel was already in place (and it is temporary). </ref> however, one should not take it apart on Shabbat unless one needs the space on that [[Shabbat]].
# One should not remove a drawer from a table if there’s a depth of a [[Tefach]] in the drawer, however, it is permitted to remove a drawer from a dresser because even after removing the drawer there still remains a roofed structure in the dresser.<Ref>Shemirat Shabbat KeHilchata 24:24 (and note 85) </ref>
# It is permitted to spread a tablecloth even if it hangs over the side of the table. <Ref>Mishna Brurah 315:31, Shemirat Shabbat KeHilchata 24:25 </ref>
 
===Umbrella===
===Umbrella===
# The Rabbis forbade opening and closing an umbrella on [[Shabbat]]. Furthermore, they forbade using an umbrella that’s already opened from before [[Shabbat]]. <Ref>Shemirat Shabbat KeHilchata 24:15, Biur Halacha 315:7, Ben Ish Chai (second year Shemot #8), Noda Biyehuda 1:30, [https://www.dailyhalacha.com/Display.asp?ClipDate=3/25/2008 Rabbi Eli Mansour], Rivevot Ephraim 7:105 and 2:115:61. see however Chatam Sofer OC 72 who is lenient </ref>  
# The Rabbis forbad opening and closing an umbrella on [[Shabbat]]. Furthermore, they forbad using an umbrella that’s already opened from before [[Shabbat]]. <Ref>Shemirat [[Shabbat]] KeHilchata 24:15, Biur Halacha 315:7, Ben Ish Chai (second year Shemot #8), Noda Biyehuda 1:30, [https://www.dailyhalacha.com/Display.asp?ClipDate=3/25/2008 Rabbi Eli Mansour], Rivevot Ephraim 7:105 and 2:115:61. see however Chatam Sofer OC 72 who is lenient </ref>  
# An umbrella is [[muktzeh]] since it cannot be used <ref> Shemirat Shabbat KeHilchata 24:15 </ref>
# An umbrella is [[muktzeh]] since it cannot be used <ref> Shemirat [[Shabbat]] KeHilchata 24:15 </ref>
 
===Binoculars===
See [[Balls_and_games#Binoculars_and_Telescopes | Binoculars and Telescopes]] on the [[Games on Shabbat]] page
 
===Setting up a Mechitza===
# It’s permissible to set up a partition as a mechitzah in shul between men and women on [[Shabbat]].<ref>Yalkut Yosef (vol 2, 315, pg 531), Rav Soloveitchik (cited in Nefesh Harav pg. 170), [https://www.yutorah.org/sidebar/lecture.cfm/857702/rabbi-hershel-schachter/highlights-of-melachos-shabbos-ii/ Rav Schachter (Highlights of Melachos Shabbat Part 2, min 62)] </ref>


===Saltshakers===
==Binoculars==
# It is permitted to open and close a saltshaker on [[Shabbat]].<ref> Minchat Shlomo 1:11:4 says that this isn't an issue of boneh since it isn't typically screwed on tightly. </ref>
see [[Balls_and_games#Binoculars_and_Telescopes | Binoculars and Telescopes]] on the [[Games on Shabbat]] page


===Pot covers===
==Mechitza==
#It is permitted to cover or remove the cover on a pot on [[Shabbat]].<ref>Yalkut Yosef (pg 506) </ref> Some say that one may not cover a pot which is larger than 40 [[seah]].<Ref>Or Letzion (vol 2, chap 28:5) </ref>
# It’s permissible to set up a partition as a mechitzah in shul between men and women on [[Shabbat]]. <ref>Yalkut Yosef (vol 2, 315, pg 531) </ref>


===Glasses===
==Saltshakers==
# Some poskim permit a glasses lenses to be replaced by a non-professional <ref>Yalkut Yosef (pg 512) </ref> while others forbid. <Ref>Shemirat Shabbat KeHilchata 15:77 </ref>  
# It is permitted to open and close a saltshaker on [[Shabbat]]. <ref> Minchat Shlomo 1:11:4 says that this isn't an issue of boneh since it isn't typically screwed on tightly. </ref>  


===Hanging up Pictures===
==Pot covers==
It is permitted to cover or remove the cover on a pot on [[Shabbat]]. <ref>Yalkut Yosef (pg 506) </ref> Some say that one may not cover a pot which is larger than 40 seah. <Ref>Or Letzion (vol 2, chap 28:5) </ref>
==Glasses==
# Some poskim permit a glasses lenses to be replaced by a non-professional <ref>Yalkut Yosef (pg 512) </ref> while others forbid. <Ref>Shemirat [[Shabbat]] KeHilchata 15:77 </ref>
==Pictures==
# Some say that on [[Shabbat]] it’s permitted to hang or remove a picture on a nail already in the wall. <Ref>Yalkut Yosef (pg 527) </ref>
# Some say that on [[Shabbat]] it’s permitted to hang or remove a picture on a nail already in the wall. <Ref>Yalkut Yosef (pg 527) </ref>
===Bottle caps===
==Bottle caps==
# See the [[Opening_bottles_and_containers#Bottle_caps]] page.
# See the [[Opening_bottles_and_containers#Bottle_caps]] page.


===Ice cubes===
==Ice cubes==
# Some are lenient to allow making ice on Shabbat and don't consider it to be constructing ice cubes. <Ref>Yalkut Yosef (pg 515) </ref> In terms of preparing for after Shabbat, see [[Hachana]].
# Some are lenient. <Ref>Yalkut Yosef (pg 515) </ref>


===Watches===
==Watches==
# It is forbidden to wind a watch which has stopped working on [[Shabbat]].<ref>Shemirat Shabbat KeHilchata 28:19 </ref> Some say that one may wind it if it is still working.<ref> Yalkut Yosef (pg 512) </ref>
# It is forbidden to wind a watch which has stopped working on [[Shabbat]]. <ref>Shemirat [[Shabbat]] KeHilchata 28:19 </ref> Some say that one may wind it if it is still working. <ref> Yalkut Yosef (pg 512) </ref>
===Shtender===
==Shtender==
# Some say that it is permitted to adjust the height of a shtender if (1) the parts aren’t held tightly and (2) the parts are frequently opened and closed (as is common which shtenders in shul). However, if the parts fit tightly or it isn’t opened and closed frequently (as is common which shtenders in a house) it’s forbidden. The pieces are considered held loosely if one isn’t considered if the parts move around where they are joined.<Ref>Or Letzion (vol 2, 27:3). Sh"t Minchat Yitzchak 9:38 prohibits in any event </ref> However, some poskim are lenient in all cases.<ref>Yalkut Yosef (314, pg 504), Shulchan Shlomo 313:7, Sh”t Shevet HaLevi 6:32. Rav Elyashiv (Ashrei Haish 2:20:23) originally was lenient to adjust a shtender with a removable peg, but later in life retracted and was strict. </ref>
# Some say that it is permitted to adjust the height of a shtender if (1) the parts aren’t held tightly and (2) the parts are frequently opened and closed (as is common which shtenders in shul). However, if the parts fit tightly or it isn’t opened and closed frequently (as is common which shtenders in a house) it’s forbidden. The pieces are considered held loosely if one isn’t considered if the parts move around where they are joined. <Ref>Or Letzion (vol 2, 27:3). Sh"t Minchat Yitzchak 9:38 prohibits in any event </ref> However, some poskim are lenient in all cases. <Ref>Yalkut Yosef (314, pg 504), Shulchan Shlomo 313:7, Sh”t Shevet HaLevi 6:32. </ref>
 
==Play pen==
{{Playpens and Cribs on Shabbat}}
# Some sat that it is permitted to set up a baby’s play pen only if (1) the parts aren’t held tightly and (2) the parts are frequently opened and closed. However, if the parts fit tightly or it isn’t opened and closed frequently it’s forbidden. The pieces are considered held loosely if one isn’t considered if the parts move around where they are joined. <Ref>Or Letzion (vol 2, 27:1) </ref> However, some permit it if it is used frequently. <Ref>Shemirat [[Shabbat]] KeHilchata 24:23 </ref>
 
# It is forbidden to cover a play pen with a blanket to protect it from the sun or bugs. However if the blanket was spread over the pen from before [[Shabbat]] at least a [[tefach]] in width (not including the part which was rolled up) then one may spread it out fully on [[Shabbat]]. One should make sure not to remove the blanket totally rather leave at least a [[Tefach]] spread out. <ref>Shemirat [[Shabbat]] KeHilchata 24:9 </ref>
===Sukkah Schlock===
==Baby basket==
# It is permitted to put a rainproof cover (like a plastic tarp) on top of the Sachach of a [[Sukkah]] on [[Yom Tov]] as long as it is clear that one is only doing so to protect the sukkah and also the covering is within 3 tefachim of the sachach. When putting on the cover one should be careful not to move the Sachach because it is [[Muktzeh]]. <Ref>Mishna Brurah 640:25, Shemirat Shabbat KeHilchata 24:12 </ref>
# It is permitted to adjust the height of a baby’s basket if (1) the parts aren’t held tightly and (2) the parts are frequently opened and closed. However, if the parts fit tightly or it isn’t opened and closed frequently it’s forbidden. The pieces are considered held loosely if one isn’t considered if the parts move around where they are joined. <Ref>Or Letzion (vol 2, 27:1) </ref>
===Mosquito Net===
==Sukkah Schlock==
# Spreading over a mosquito net is different, and would be prohibited according to all Poskim unless it was spread out a the required 3.75 inches prior to [[Shabbos]].<ref>Shemirat Shabbat KeHilchata 24:9, Shevet Halevi 3:54</ref>
# It is permitted to put a rainproof cover (like a plastic tarp) on top of the Sachach of a [[Sukkah]] on [[Yom Tov]], however, when doing so one should be careful not to move the Sachach because it is [[Muktzeh]]. <Ref>Shemirat [[Shabbat]] KeHilchata 24:10 </ref>
 
==Folding table==
===Concrete===
# It is permitted to open a folding table. <Ref>Shemirat [[Shabbat]] KeHilchata 24:23 </ref>
# It is forbidden to pour water on concrete on Shabbat in order to harden it even if one is pouring the water for another purpose like washing one's hands and beneath there is concrete that needs to be hardened. The best option is to use a timer. A worse alternative is to ask a non-Jew to do it using grama, such as pouring the water into a vessel near the concrete which when it overflows spills onto the concrete.<ref>Chazon Ovadia v. 5 p. 277</ref>
# It’s permitted to add a table leaf to extend a table on [[Shabbat]] (for temporary use), however, one should take it apart unless one needs the space on that [[Shabbat]]. <ref>Shemirat [[Shabbat]] KeHilchata 24:23, Practical Laws of [[Shabbat]] (Rabbi Rafeal Soae, vol 2, pg 146). Chazon Ovadia (v. 5, p. 315) writes that it is permitted to add a leaf to a table and it doesn’t involve constructing an ohel, since part of the ohel was already in place (and it is temporary). </ref>
===Hair Gel===
# One should not remove a drawer from a table if there’s a depth of a [[Tefach]] in the drawer, however, it is permitted to remove a drawer from a dresser because even after removing the drawer there still remains a roofed structure in the dresser. <Ref>Shemirat [[Shabbat]] KeHilchata 24:24 (and note 85) </ref>
# It is forbidden to use unscented hair gel on shabbat, however, scented hair gel is permissible. <ref> Ach Tov VaHessed, Year 5783, Page 113 </ref>
# It is permitted to spread a tablecloth even if it hangs over the side of the table. <Ref>Mishna Brurah 315:31, Shemirat [[Shabbat]] KeHilchata 24:25 </ref>
==Beds==
# It is permitted to spread a bed sheet even if it hangs over the side of the bed. <Ref>Mishna Brurah 315:31, Shemirat [[Shabbat]] KeHilchata 24:25 </ref>
# It is forbidden to put together a crib on [[Shabbat]]. <ref>Shemirat [[Shabbat]] KeHilchata 24:23 </ref>


==Building a wall==
==Building a wall==
# It’s forbidden to build a permanent wall which means that it is meant to last a few days. <Ref>Shemirat Shabbat KeHilchata 24:26 </ref>
# It’s forbidden to build a permanent wall which means that it is meant to last a few days. <Ref>Shemirat [[Shabbat]] KeHilchata 24:26 </ref>
# It is permitted to erect a temporary wall even to protect from the sun or wind; for example it’s permitted to set up temporary walls around a sick person’s bed <Ref>Shemirat Shabbat KeHilchata 24:27 </ref>
# It is permitted to erect a temporary wall even to protect from the sun or wind; for example it’s permitted to set up temporary walls around a sick person’s bed <Ref>Shemirat [[Shabbat]] KeHilchata 24:27 </ref>
# It’s permitted to place a cloth in place of a broken window, but one may not use nails or thumbtacks. <Ref>Shemirat Shabbat KeHilchata 24:27 </ref>
# It’s permitted to place a cloth in place of a broken window, but one may not use nails or thumbtacks. <Ref>Shemirat [[Shabbat]] KeHilchata 24:27 </ref>
# It’s permitted to set up a Parochet (curtain) in front of the Aron in Shul on [[Shabbat]] as long as it doesn’t have a width of a [[Tefach]] as a roof. Some only permit if there are doors besides the curtain while others forbid unless there are doors. <Ref>Rama 315:1, Mishna Brurah 315:7 </ref> If it is a large Parochet it should only be put up by two people so that it doesn’t fold over and form a tent on [[Shabbat]].<ref>S”A 315:12, Mishna Brurah 315:8 </ref>
# It’s permitted to set up a Parochet (curtain) in front of the Aron in Shul on [[Shabbat]] as long as it doesn’t have a width of a [[Tefach]] as a roof. Some only permit if there are doors besides the curtain while others forbid unless there are doors. <Ref>Rama 315:1, Mishna Brurah 315:7 </ref> If it is a large Parochet it should only be put up by two people so that it doesn’t fold over and form a tent on [[Shabbat]]. <ref>S”A 315:12, Mishna Brurah 315:8 </ref>
===Curtains===
===Curtains===
# It is permitted to set up a curtain in place of a door even if it is attached at the bottom and top when one's intention is to hang the curtain temporarily (less than a few days). <Ref>Shemirat Shabbat KeHilchata 24:27 </ref>  
# It’s permitted to set up a curtain in place of a door even if it’s attached at the bottom and top only if it is meant to be set up temporarily (less than a few days). <Ref>Shemirat [[Shabbat]] KeHilchata 24:27 </ref>  
# Some authorities permit setting up a curtain even for many days (permanently) on the condition that it is only attached at the top of the curtain, but not on the bottom. However, others hold that this is biblically forbidden. One who is relying on those who permit hanging such a curtain, must take care when putting up a large curtain that it does not fold over while trying to put it up, since if it does fold over it will form a tent on [[Shabbat]]. One can put up the curtain with a partner to ensure that the curtain does not fold over while hanging it <Ref>Shemirat Shabbat KeHilchata 24:28 quotes the opinion of the Rama 315:1 and Mishna Brurah 315:6 as being lenient against the Chazon Ish 52:13 who is strict, but don’t resolve or take a side in the dispute. The Shemirat Shabbat KeHilchata insists on putting it up with two people based on the S”A 315:12 </ref>
# Some permit setting up a curtain even for many days (permanently) if it is only attached at the top and not the bottom. However, others hold that this is biblically forbidden. Even according to those who permit when put up a large curtain one must make sure to put it up with two people so that it doesn’t fold over while trying to put it up and when it folds over it will form a tent on [[Shabbat]]. <Ref>Shemirat [[Shabbat]] KeHilchata 24:28 quotes the opinion of the Rama 315:1 and Mishna Brurah 315:6 as being lenient against the Chazon Ish 52:13 who is strict, but don’t resolve or take a side in the dispute. The Shemirat [[Shabbat]] KeHilchata insists on putting it up with two people based on the S”A 315:12 </ref>
# Setting up a curtain in place of a window is the same as a door (if it’s temporary it’s permitted, if it’s permanent some permit if one only attaches it at the top while others forbid.) <ref>Shemirat Shabbat KeHilchata 24:29 </ref>
# Setting up a curtain in place of a window is the same as a door (if it’s temporary it’s permitted, if it’s permanent some permit if one only attaches it at the top while others forbid.) <ref>Shemirat [[Shabbat]] KeHilchata 24:29 </ref>


==Links==
* [http://www.yutorah.org/lectures/lecture.cfm/710114/Rabbi_Yaakov_B_Neuburger/Boneh:_Halacha_lema'aseh Boneh: Halacha lema'aseh] by Rabbi Yaakov Neuburger
* Article on [http://www.yeshiva.co/midrash/shiur.asp?id=13223 Assembling Portable Cribs and Adjusting Shtenders on Shabbos] by Rabbi Yirmiyohu Kaganoff
==Sources==
==Sources==
<references/>
<references/>
[[Category:Orach Chaim]]
[[Category:Shabbat]]
[[Category:Shabbat]]
{{Shabbat Table}}

Revision as of 21:29, 23 July 2014

Two Primary Principles of Boneh

  1. Creating a shelter ("asiat ohel") [1]
  2. Assembling pieces to create a form or structure ("me'dabek chalakim") [2]

Performing either of these actions constitutes a Torah-prohibition, as both of these actions were done in the construction of the Mishkan. An action that involves both of these principles is the av melacha of Boneh. [3]

Building shelters and tents

  1. Setting up a functional installation attached to the ground is a violation of Boneh (building). For example, it's forbidden to erect a post in the ground or tomato stake to support a tomato plant. [4]
  2. Laying bricks, setting up rocks as a border to a garden, putting down rocks for landscaping purposes (like chips around a tree or on a road or path), and building a fence are all violations of Boneh (building). [5]
  3. Building a Sukkah is forbidden as Boneh (building). [6]
  4. Building any functional land structure whether it is permanent or temporary is forbidden. [7]
  5. However, using an object as it is normally used such as closing a door is permitted. Similarly one may replace a removable paper towel roll or removable toilet paper holder. [8]

Adding on to a existing structure

  1. Just as it is forbidden to create even a temporary structure on Shabbat, it is forbidden to add onto a permanent structure even if the addition is temporary.[9]
  2. In previous centuries it was common to have dirt floors and it would be forbidden to put down new sand as it is left as a permanent layer of the floor and is a violation of Boneh (building). [10]
  3. Putting down a large area rug which is meant to remain there for more than 7 days is forbidden as it is considered something that can become nullified to the floor. [11]
  4. Tiling a floor, wallpapering a room, installing a doorknob are all forbidden as adding to an existing structure. [12]
  5. According to many poskim it is permitted to rehang a picture that fell on Shabbat as long as the picture isn't expensive and rare. [13]
  6. One should not replace a mezuzah that fell on Shabbat because of issues of adding to an existing structure and muktzeh. However, if it is lying on the floor one pick it up in a abnormal way such as by using the palms of both hands. [14]

Digging and filling a hole

  1. When people used to have dirt floors, if there was a hole in the floor, filling it up would be a violation of Boneh. [15]

Assembling objects

  1. Making a earth vessel such as an oven or barrel before it is hardened in the kiln is a violation of Boneh. [16]
  2. One shouldn't untangle Tzitzit strings on Shabbat because this involves Tikkun Kli (fixing of a vessel). [17]
  3. One shouldn't make a paper boat or paper hat by folding the paper since this involves creating a vessel. [18]
  4. One may fold a napkin regularly, but one shouldn't fold it in a special shape, such as is normally done in honor of guests. [19]

Building a tent

  1. It’s forbidden to set up the roof of a tent, permanent or temporary, on Shabbat, even if one there are no walls. Additionally, it’s forbidden to add onto a tent structure, however, a temporary addition to an existing structure is permitted. [20]
  2. It is forbidden to set up a tent out of blankets even if it is meant to be temporary. [21]

Adding an existing structure

  1. It’s permitted to make a temporary addition to an exisiting tent. Therefore, if there is a Tefach of roof already opened before Shabbat one may continue to add a temporary addition to that roof, but one should only add to the existing roof starting from the side which is already roofed. [22]
  2. One may not put a mat on top of polls or walls even if the mat is rolled up if there is a Tefach of width to the roll of the mat. Even if the rolled mat was put there before Shabbat one may not unroll it on Shabbat, however, if a Tefach of the mat was already unrolled then it is permitted to continue to unroll it on Shabbat. [23]

Roof which is attached

  1. If a roof was attached before Shabbat with hinges or another permanent connection it is permitted to spread out that roof (which was attached) on Shabbat. [24]
  2. It is permitted to open the hood of a baby carriage if it was attached from before Shabbat, however, it was attached on Shabbat one may not spread it one Shabbat. Once the hood is open it is permitted to add a temporary additional roof but one should start to add to that roof from the side which is already covered (by the hood). [25]

Umbrella

  1. The Rabbis forbad opening and closing an umbrella on Shabbat. Furthermore, they forbad using an umbrella that’s already opened from before Shabbat. [26]
  2. An umbrella is muktzeh since it cannot be used [27]

Binoculars

see Binoculars and Telescopes on the Games on Shabbat page

Mechitza

  1. It’s permissible to set up a partition as a mechitzah in shul between men and women on Shabbat. [28]

Saltshakers

  1. It is permitted to open and close a saltshaker on Shabbat. [29]

Pot covers

It is permitted to cover or remove the cover on a pot on Shabbat. [30] Some say that one may not cover a pot which is larger than 40 seah. [31]

Glasses

  1. Some poskim permit a glasses lenses to be replaced by a non-professional [32] while others forbid. [33]

Pictures

  1. Some say that on Shabbat it’s permitted to hang or remove a picture on a nail already in the wall. [34]

Bottle caps

  1. See the Opening_bottles_and_containers#Bottle_caps page.

Ice cubes

  1. Some are lenient. [35]

Watches

  1. It is forbidden to wind a watch which has stopped working on Shabbat. [36] Some say that one may wind it if it is still working. [37]

Shtender

  1. Some say that it is permitted to adjust the height of a shtender if (1) the parts aren’t held tightly and (2) the parts are frequently opened and closed (as is common which shtenders in shul). However, if the parts fit tightly or it isn’t opened and closed frequently (as is common which shtenders in a house) it’s forbidden. The pieces are considered held loosely if one isn’t considered if the parts move around where they are joined. [38] However, some poskim are lenient in all cases. [39]

Play pen

  1. Some sat that it is permitted to set up a baby’s play pen only if (1) the parts aren’t held tightly and (2) the parts are frequently opened and closed. However, if the parts fit tightly or it isn’t opened and closed frequently it’s forbidden. The pieces are considered held loosely if one isn’t considered if the parts move around where they are joined. [40] However, some permit it if it is used frequently. [41]
  2. It is forbidden to cover a play pen with a blanket to protect it from the sun or bugs. However if the blanket was spread over the pen from before Shabbat at least a tefach in width (not including the part which was rolled up) then one may spread it out fully on Shabbat. One should make sure not to remove the blanket totally rather leave at least a Tefach spread out. [42]

Baby basket

  1. It is permitted to adjust the height of a baby’s basket if (1) the parts aren’t held tightly and (2) the parts are frequently opened and closed. However, if the parts fit tightly or it isn’t opened and closed frequently it’s forbidden. The pieces are considered held loosely if one isn’t considered if the parts move around where they are joined. [43]

Sukkah Schlock

  1. It is permitted to put a rainproof cover (like a plastic tarp) on top of the Sachach of a Sukkah on Yom Tov, however, when doing so one should be careful not to move the Sachach because it is Muktzeh. [44]

Folding table

  1. It is permitted to open a folding table. [45]
  2. It’s permitted to add a table leaf to extend a table on Shabbat (for temporary use), however, one should take it apart unless one needs the space on that Shabbat. [46]
  3. One should not remove a drawer from a table if there’s a depth of a Tefach in the drawer, however, it is permitted to remove a drawer from a dresser because even after removing the drawer there still remains a roofed structure in the dresser. [47]
  4. It is permitted to spread a tablecloth even if it hangs over the side of the table. [48]

Beds

  1. It is permitted to spread a bed sheet even if it hangs over the side of the bed. [49]
  2. It is forbidden to put together a crib on Shabbat. [50]

Building a wall

  1. It’s forbidden to build a permanent wall which means that it is meant to last a few days. [51]
  2. It is permitted to erect a temporary wall even to protect from the sun or wind; for example it’s permitted to set up temporary walls around a sick person’s bed [52]
  3. It’s permitted to place a cloth in place of a broken window, but one may not use nails or thumbtacks. [53]
  4. It’s permitted to set up a Parochet (curtain) in front of the Aron in Shul on Shabbat as long as it doesn’t have a width of a Tefach as a roof. Some only permit if there are doors besides the curtain while others forbid unless there are doors. [54] If it is a large Parochet it should only be put up by two people so that it doesn’t fold over and form a tent on Shabbat. [55]

Curtains

  1. It’s permitted to set up a curtain in place of a door even if it’s attached at the bottom and top only if it is meant to be set up temporarily (less than a few days). [56]
  2. Some permit setting up a curtain even for many days (permanently) if it is only attached at the top and not the bottom. However, others hold that this is biblically forbidden. Even according to those who permit when put up a large curtain one must make sure to put it up with two people so that it doesn’t fold over while trying to put it up and when it folds over it will form a tent on Shabbat. [57]
  3. Setting up a curtain in place of a window is the same as a door (if it’s temporary it’s permitted, if it’s permanent some permit if one only attaches it at the top while others forbid.) [58]

Sources

  1. Rambam 7,6 This was done in the Mishkan when the walls and rooftops were assembled.
  2. Rambam 11,13 and 22,27 This was done in the Mishkan when the planks were assembled.
  3. Rambam as explained by the Even Ha'ezel 10,17.
  4. 39 Melachos (Rabbi Ribiat, vol 4, pg 1005)
  5. 39 Melachos (Rabbi Ribiat, vol 4, pg 1006)
  6. 39 Melachos (Rabbi Ribiat, vol 4, pg 1010)
  7. 39 Melachos (Rabbi Ribiat, vol 4, pg 1012) explains that if it is a construction that can't be taken apart and only can be broken then it's forbidden biblically whether it is permanent or temporary and if it is a assembly that can be dismantled then building it for temporary purposes (less than 7 days) is a rabbinic violation and building it for permanent purposes is biblical violations.
  8. 39 Melachos (Rabbi Ribiat, vol 4, pg 1014-5)
  9. Kitzur S"A 80:67
  10. 39 Melachos (Rabbi Ribiat, vol 4, pg 1015)
  11. 39 Melachos (Rabbi Ribiat, vol 4, pg 1017 and 1019) explains that since it is only a loose addition it doesn't become nullified to the floor unless it is put there for 7 days.
  12. 39 Melachos (Rabbi Ribiat, vol 4, pg 1016-7)
  13. 39 Melachos (Rabbi Ribiat, vol 4, pg 1019) explains that that according to many opinions hanging a picture isn't a violation of adding to a existing structure because it retains it's own function similar to putting a potted plant on the floor or a vessel in the breakfront even though it will remain for a long time. On pg 1038 he writes that it's permissible to rehang it unless it is a expensive and rare painting because it would be muktzah and according to some poskim it's muktzeh once it was attached during the onset of Shabbat.
  14. 39 Melachos (Rabbi Ribiat, vol 4, pg 1038)
  15. In Gemara (Shabbat 73b) Rava says that if one fills in a hole with dirt inside the house, one has violated Boneh. Rambam (Shabbat 10:12) rules that flattening the ground indoors, by flattening a mound or filling in a hole is a violation of Boneh. Mishna Brurah 337:6 writes that if one intentionally fills the holes when sweeping one would violate Boneh.
  16. Rambam (Shabbat 10:13)
  17. Shemirat Shabbat Kehilchata 15:94
  18. Shemirat Shabbat Kehilchata 16:21
  19. Shemirat Shabbat Kehilchata 28:17
  20. Shemirat Shabbat KeHilchata 24:1-2
  21. Menuchat Ahava (vol 3, 23:8), Shemirat Shabbat KeHilchata 24:1-2
  22. Shemirat Shabbat KeHilchata 24:6
  23. Shemirat Shabbat KeHilchata 24:5, 7
  24. Shemirat Shabbat KeHilchata 24:13
  25. Shemirat Shabbat KeHilchata 24:13
  26. Shemirat Shabbat KeHilchata 24:15, Biur Halacha 315:7, Ben Ish Chai (second year Shemot #8), Noda Biyehuda 1:30, Rabbi Eli Mansour, Rivevot Ephraim 7:105 and 2:115:61. see however Chatam Sofer OC 72 who is lenient
  27. Shemirat Shabbat KeHilchata 24:15
  28. Yalkut Yosef (vol 2, 315, pg 531)
  29. Minchat Shlomo 1:11:4 says that this isn't an issue of boneh since it isn't typically screwed on tightly.
  30. Yalkut Yosef (pg 506)
  31. Or Letzion (vol 2, chap 28:5)
  32. Yalkut Yosef (pg 512)
  33. Shemirat Shabbat KeHilchata 15:77
  34. Yalkut Yosef (pg 527)
  35. Yalkut Yosef (pg 515)
  36. Shemirat Shabbat KeHilchata 28:19
  37. Yalkut Yosef (pg 512)
  38. Or Letzion (vol 2, 27:3). Sh"t Minchat Yitzchak 9:38 prohibits in any event
  39. Yalkut Yosef (314, pg 504), Shulchan Shlomo 313:7, Sh”t Shevet HaLevi 6:32.
  40. Or Letzion (vol 2, 27:1)
  41. Shemirat Shabbat KeHilchata 24:23
  42. Shemirat Shabbat KeHilchata 24:9
  43. Or Letzion (vol 2, 27:1)
  44. Shemirat Shabbat KeHilchata 24:10
  45. Shemirat Shabbat KeHilchata 24:23
  46. Shemirat Shabbat KeHilchata 24:23, Practical Laws of Shabbat (Rabbi Rafeal Soae, vol 2, pg 146). Chazon Ovadia (v. 5, p. 315) writes that it is permitted to add a leaf to a table and it doesn’t involve constructing an ohel, since part of the ohel was already in place (and it is temporary).
  47. Shemirat Shabbat KeHilchata 24:24 (and note 85)
  48. Mishna Brurah 315:31, Shemirat Shabbat KeHilchata 24:25
  49. Mishna Brurah 315:31, Shemirat Shabbat KeHilchata 24:25
  50. Shemirat Shabbat KeHilchata 24:23
  51. Shemirat Shabbat KeHilchata 24:26
  52. Shemirat Shabbat KeHilchata 24:27
  53. Shemirat Shabbat KeHilchata 24:27
  54. Rama 315:1, Mishna Brurah 315:7
  55. S”A 315:12, Mishna Brurah 315:8
  56. Shemirat Shabbat KeHilchata 24:27
  57. Shemirat Shabbat KeHilchata 24:28 quotes the opinion of the Rama 315:1 and Mishna Brurah 315:6 as being lenient against the Chazon Ish 52:13 who is strict, but don’t resolve or take a side in the dispute. The Shemirat Shabbat KeHilchata insists on putting it up with two people based on the S”A 315:12
  58. Shemirat Shabbat KeHilchata 24:29