Leviticus 7:32-34

32And you are to give the right thigh to the priest as a contribution from your peace offering. 33The son of Aaron who presents the blood and fat of the peace offering shall have the right thigh as a portion.

34I have taken from the sons of Israel the breast of the wave offering and the thigh of the contribution of their peace offerings, and I have given them to Aaron the priest and his sons as a permanent portion from the sons of Israel.’”