Leviticus 7:18-21

18If any of the meat from his peace offering is eaten on the third day, it will not be accepted. It will not be credited to the one who presented it; it shall be an abomination, and the one who eats of it shall bear his iniquity.

19Meat that touches anything unclean must not be eaten; it is to be burned up. As for any other meat, anyone who is ceremonially clean may eat it. 20But if anyone who is unclean eats meat from the peace offering that belongs to the LORD, that person must be cut off from his people. 21If one touches anything unclean, whether human uncleanness, an unclean animal, or any unclean, detestable thing, and then eats any of the meat of the peace offering that belongs to the LORD, that person must be cut off from his people.”