Leviticus 6:16-18

16Aaron and his sons are to eat the remainder. It must be eaten without leaven in a holy place; they are to eat it in the courtyard of the Tent of Meeting. 17It must not be baked with leaven; I have assigned it as their portion of My food offerings. It is most holy, like the sin offering and the guilt offering. 18Any male among the sons of Aaron may eat it. This is a permanent portion from the food offerings to the LORD for the generations to come. Anything that touches them will become holy.”