Study Temurah folio 22B with parallel Hebrew-English text, traditional commentary, and modern study tools. Free access to Babylonian Talmud online.
§ The Talmud discusses the matter itself, which was cited above: Rava said: A sin offering lost at night, when one cannot sacrifice an offering, is not called lost. Provided that the offering is found before morning, then even if the owner designated another sin offering in its stead, the first
Rather, you must say that it is in accordance with the opinion of R' Yehuda HaNasi, who maintains that if a sin offering was lost at the time when another animal was designated in its stead, the first sin offering is left to die even if it was found before the second animal was sacrificed. Rava tea
If you wish, say: Actually, Rava’s statement is in accordance with the opinion of the Rabbis. And as for the question of why Rava specifies that it is lost only at night when the same halakha should apply even if it was lost during the day, one may respond: Here we are dealing with an animal that i
§ With regard to this matter, Abaye said: We have a tradition that a sin offering that was lost is left to die, but not a sin offering that was stolen; a sin offering that was lost is left to die, but not a sin offering that was robbed. If a sin offering was stolen or robbed, and the animal was re
The Talmud asks: What are the circumstances in which an animal is considered to be lost? R' Oshaya says: Even one sin offering intermingled with other animals in the owner’s flock, to the extent that he cannot discern which animal is the sin offering, is considered lost. And even one sin offering i