Leviticus 7:17-18

¹⁷But what is left of the flesh of the sacrifice, on the third day shall it be burnt with fire.

¹⁸And if the intention was to eat of the flesh of the sacrifice of his peace-offering on the third day, it shall not be favorably received; to him who offereth it shall it not be accounted; it shall be an abomination, and the person that eateth of it shall bear his iniquity.