Leviticus 7:31-35

³¹The priest shall burn the fat on the altar, but the breast shall be Aaron’s and his sons’.

³²The right thigh you shall give to the priest for a heave offering out of the sacrifices of your peace offerings.

³³He amongst the sons of Aaron who offers the blood of the peace offerings, and the fat, shall have the right thigh for a portion.

³⁴For the waved breast and the heaved thigh I have taken from the children of Israel out of the sacrifices of their peace offerings, and have given them to Aaron the priest and to his sons as their portion forever from the children of Israel.’”

³⁵This is the consecrated portion of Aaron, and the consecrated portion of his sons, out of the offerings of the LORD made by fire, in the day when he presented them to minister to the LORD in the priest’s office;