Exodus 29:31-34

31“Take the ram used for the ordination, and boil its meat in a holy place.

32At the entrance to the tent of meeting, Aaron and his sons will eat the meat of the ram and the bread ⌞left⌟ in the basket.

33They will eat those offerings through which they made peace with the Lord at their ordination and installation. No one else may eat them because the offerings are holy.

34If any meat or bread from the ordination is left over until morning, burn it up. It must not be eaten because it is holy.