Leviticus 19:5-8

‘And if you offer a sacrifice of a peace offering to the LORD, you shall offer it of your own free will. It shall be eaten the same day you offer it, and on the next day. And if any remains until the third day, it shall be burned in the fire. And if it is eaten at all on the third day, it is an abomination. It shall not be accepted. Therefore everyone who eats it shall bear his iniquity, because he has profaned the hallowed offering of the LORD; and that person shall be cut off from his people.