Exodus 29:31-34

31And thou shalt take the ram of consecration, and boil its flesh in a holy place. 32And Aaron and his sons shall eat the flesh of the ram, and the bread that is in the basket, at the door of the tent of meeting. 33And they shall eat those things wherewith atonement was made, to consecrate and to sanctify them: but a stranger shall not eat thereof, because they are holy. 34And if aught of the flesh of the consecration, or of the bread, remain unto the morning, then thou shalt burn the remainder with fire: it shall not be eaten, because it is holy.