Leviticus 19:6-8

New International Version - UK

⁶ It shall be eaten on the day you sacrifice it or on the next day; anything left over until the third day must be burned. ⁷ If any of it is eaten on the third day, it is impure and will not be accepted. ⁸ Whoever eats it will be held responsible because they have desecrated what is holy to the Lord; they must be cut off from their people.