Leviticus 7:30-31; Leviticus 7:34
With his own hands he is to bring the offering made to the LORD by fire; he is to bring the fat, together with the breast, and wave the breast before the LORD as a wave offering.
The priest shall burn the fat on the altar, but the breast belongs to Aaron and his sons.
From the fellowship offerings of the Israelites, I have taken the breast that is waved and the thigh that is presented and have given them to Aaron the priest and his sons as their regular share from the Israelites.' "