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

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.

Leviticus 7:19

7:19 The meat which touches anything ceremonially unclean must not be eaten; it must be burned up in the fire. As for ceremonially clean meat, everyone who is ceremonially clean may eat the meat.

Leviticus 4:12

4:12 all the rest of the bull – he must bring outside the camp to a ceremonially clean place, to the fatty ash pile, and he must burn it on a wood fire; it must be burned on the fatty ash pile.