[If there was] a piece of cheilev and a piece of cheilev that was nossar, [if] he ate one of them, and it is not known which of them he ate, he must bring a chatas and an asham talui. [If] he ate the second [piece], he must bring three chataos. [If] one person ate the first [piece] and another came and ate the second [piece] — this one must bring a chatas and an asham talui, and that one must bring a chatas and an asham talui. R’ Shimon says: This one [brings] a chatas and that one [brings] a chatas, and both must bring a [third] chatas. R’ Yose says: Any chatas that comes for sin, two may not bring it.