==Amount to Drink==
# See the [[Required Amount of Matzah and Wine for the Seder]] page.
==Obligation to Lean==
# One must lean while drinking the four cups of wine. If for any of the cups one did not, according to Sephardim, one should drink the cup again. <ref> Shulchan Aruch 472:7, Yalkut Yosef 472:13 </ref> According to Ashkenazim, only for the second cup should one drink the cup again. <ref> Rama 472:7 writes that if one forgets to lean, he must only repeat for the first two cups. Mishna Brurah (472:21) notes that in general one should not repeat the first cup because doing so will require one to make another berakhah. Preferably, one should have in mind that one may drink in between the first and second cup and then if one drinks the first cup without leaning, one would be able to drink it again without a berakhah. </ref>