Leviticus 6:16, 26, 29

What is left of it Aaron and his sons are to eat. It shall be eaten as unleavened bread in a holy place; they are to eat it in the courtyard of the Tent of Meeting. [1 Cor 9:13, 14]

The priest who offers it for sin shall eat it. It shall be eaten in a holy place, in the courtyard of the Tent of Meeting.

Every male among the priests may eat this offering; it is most holy.