Leviticus 7:12-19

If one offers it as a sacrificial meal of thanksgiving, then along with the sacrifice of thanksgiving he shall offer unleavened cakes mixed with oil, and unleavened wafers spread with oil, and cakes of fine flour mixed with oil. With the sacrifice of his peace offerings for thanksgiving, he shall present his offering with cakes of leavened bread. Of this he shall present one [cake] from each offering as a contribution to the LORD; it shall belong to the priest who sprinkles the blood of the peace offerings. ‘The meat of the sacrifice of thanksgiving presented as a peace offering shall be eaten on the day that it is offered; none of it shall be left until morning. But if the sacrifice of his offering is a vow or a freewill offering, it shall be eaten on the day that he offers his sacrifice, and on the next day that which remains of it may be eaten; but what is left over from the meat of the sacrifice on the third day shall be [completely] burned in the fire. If any of the meat of the sacrifice of his peace offerings is ever eaten on the third day, then it will not be accepted, and the one who brought it will not be credited with it. It shall be an abhorred (offensive) thing; the one who eats it shall bear his own guilt. ‘The meat that comes in contact with anything that is unclean shall not be eaten; it shall be burned in the fire. As for other meat, everyone who is [ceremonially] clean may eat it.