Leviticus 7:29-34

Speak unto the children of Israel, saying, He that offereth the sacrifice of his peace-offerings unto Jehovah shall bring his oblation unto Jehovah out of the sacrifice of his peace-offerings: his own hands shall bring the offerings of Jehovah made by fire; the fat with the breast shall he bring, that the breast may be waved for a wave-offering before Jehovah. And the priest shall burn the fat upon the altar; but the breast shall be Aaron’s and his sons’. And the right thigh shall ye give unto the priest for a heave-offering out of the sacrifices of your peace-offerings. He among the sons of Aaron that offereth the blood of the peace-offerings, and the fat, shall have the right thigh for a portion. For the wave-breast and the heave-thigh have I taken of the children of Israel out of the sacrifices of their peace-offerings, and have given them unto Aaron the priest and unto his sons as their portion for ever from the children of Israel.