Exodus 29:32-34

At the entrance to the tent of meeting, Aaron and his sons are to eat the meat of the ram and the bread that is in the basket. They are to eat these offerings by which atonement was made for their ordination and consecration. But no one else may eat them, because they are sacred. And if any of the meat of the ordination ram or any bread is left over till morning, burn it up. It must not be eaten, because it is sacred.