Leviticus 7:28-36

The LORD spoke to Moses, saying, “Speak to the people of Israel, saying, Whoever offers the sacrifice of his peace offerings to the LORD shall bring his offering to the LORD from the sacrifice of his peace offerings. His own hands shall bring the LORD’s food offerings. He shall bring the fat with the breast, that the breast may be waved as a wave offering before the LORD. The priest shall burn the fat on the altar, but the breast shall be for Aaron and his sons. And the right thigh you shall give to the priest as a contribution from the sacrifice of your peace offerings. Whoever among the sons of Aaron offers the blood of the peace offerings and the fat shall have the right thigh for a portion. For the breast that is waved and the thigh that is contributed I have taken from the people of Israel, out of the sacrifices of their peace offerings, and have given them to Aaron the priest and to his sons, as a perpetual due from the people of Israel. This is the portion of Aaron and of his sons from the LORD’s food offerings, from the day they were presented to serve as priests of the LORD. The LORD commanded this to be given them by the people of Israel, from the day that he anointed them. It is a perpetual due throughout their generations.”