申命記 16:7 註釋：Rashi, Ibn Ezra, Rashbam & Or HaChaim

ובשלת is identical with צלי אש “roast with fire” mentioned in Exodus 12:9, for it (roasting) also comes under the term בשול “cooking” (Mekhilta).

As I have explained [comment on Exodus 12: 9], the word you will cook here denotes roasting. Compare, “they cooked the Paschal sacrifice in fire” [II Chronicles 35: 13]. Scriptures says you will cook only to indicate that it must not be eaten raw.

ובשלת, not in water but by roasting on a spit. (compare Rashi)

ופנית בבקר AND THOU SHALT TURN IN THE MORNING [AND GO INTO THY TENTS] — i.e. in the morning of the second day of the Passover week. — It teaches us that he (the pilgrim) is required to stay in Jerusalem during the night when the festival terminates (Sifrei Devarim 134:2; Pesachim 95b; Chagigah 17).