Leviticus 7:17

7:17 but the leftovers from the meat of the sacrifice must be burned up in the fire on the third day.

Leviticus 19:6-7

19:6 It must be eaten on the day of your sacrifice and on the following day, but what is left over until the third day must be burned up. 19:7 If, however, it is eaten on the third day, it is spoiled, it will not be accepted,

Leviticus 7:18

7:18 If some of the meat of his peace offering sacrifice is ever eaten on the third day it will not be accepted; it will not be accounted to the one who presented it, since it is spoiled, and the person who eats from it will bear his punishment for iniquity.