Leviticus 19:5-8

“When you sacrifice a peace offering to the LORD, offer it properly so you will be accepted by God. The sacrifice must be eaten on the same day you offer it or on the next day. Whatever is left over until the third day must be completely burned up. If any of the sacrifice is eaten on the third day, it will be contaminated, and I will not accept it. Anyone who eats it on the third day will be punished for defiling what is holy to the LORD and will be cut off from the community.