Leviticus 7:31-33

Complete Jewish Bible

³¹ The cohen is to make the fat go up in smoke on the altar, but the breast will belong to Aharon and his descendants. ³² You are to give the right thigh from your sacrifices of peace offerings to the cohen as a contribution. ³³ The descendant of Aharon who offers the blood of the peace offerings is to have the right thigh as his share.