Leviticus 7:16

12 If he offers it in thanksgiving, then along with the sacrifice of thanksgiving he shall offer unleavened cakes mixed with olive oil, unleavened wafers coated with oil, and well-kneaded cakes of fine flour mixed with oil.

13 Along with his peace offering of thanksgiving he is to present an offering with cakes of leavened bread.

14 From the cakes he must present one portion of each offering as a contribution to the LORD. It belongs to the priest who sprinkles the blood of the peace offering.

15 The meat of the sacrifice of his peace offering of thanksgiving must be eaten on the day he offers it; none of it may be left until morning.

16 If, however, the sacrifice he offers is a vow or a freewill offering, it shall be eaten on the day he presents his sacrifice, but the remainder may be eaten on the next day.

17 But any meat of the sacrifice remaining until the third day must be burned up.

18 If 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.

19 Meat 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.

20 But 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.

Read all of Leviticus 7