Leviticus 7:18-21

18So if any of the flesh of the sacrifice of his peace offerings is ever eaten on the third day, he who offers it will not be accepted, and it will not be credited to him. It will be an 1unclean thing, and the person who eats it shall bear his punishment.

19‘Also the flesh that touches anything unclean shall not be eaten; it shall be burned with fire. 2As for other flesh, anyone who is clean may eat such flesh. 203But the person who eats the flesh of the sacrifice of peace offerings which belong to the Lord, 4when he is unclean, that person 5shall be cut off from his people. 216When anyone touches anything unclean, whether human uncleanness, or an unclean animal, or any unclean 7detestable thing, and eats of the flesh of the sacrifice of peace offerings which belong to the Lord, that person shall be cut off from his people.’”