Leviticus 7:18-20

18And if [any] of the flesh of the sacrifice of his peace-offering be eaten at all on the third day, it shall not be accepted, it shall not be reckoned to him that hath presented it; it shall be an unclean thing, and the soul that eateth of it shall bear his iniquity.

19And the flesh that toucheth anything unclean shall not be eaten; it shall be burned with fire. And as to the flesh, all that are clean may eat [the] flesh.

20But the soul that eateth the flesh of the sacrifice of peace-offering which is for Jehovah, having his uncleanness upon him, that soul shall be cut off from his peoples.