Related for Chullin 267:11
לא שנו אלא ששקל לעצמו אבל שקל לו טבח הדין עם הטבח
IF A MAN SAID, 'SELL ME THE ENTRAILS OF A COW', etc. Rab said: They taught this<span class="x" onmousemove="('comment',' That where the entrails were sold by weight the seller must allow a reduction in the price on account of the priestly dues that were included; the implication being that the priest comes and claims the dues from the purchaser.');"><sup>8</sup></span>
Tosefta Peah
An ear of grain that is among the standing grain, behold, it belongs to the homeowner. [An ear of grain] that is among the harvested [grain], behold, it belongs to the poor. [If] half is among the standing grain, and half is among the harvested [grain], he takes it and throws it behind him, because [in a case of] doubt [as to what is considered] gleanings, [the doubt is resolved in favor of its status being] gleanings (see also Peah 6:4 re: forgotten sheaves).
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