Leviticus 9:19-21

9:19 As for the fat parts from the ox and from the ram (the fatty tail, the fat covering the entrails, the kidneys, and the protruding lobe of the liver), 9:20 they set those on the breasts and he offered the fat parts up in smoke on the altar. 9:21 Finally Aaron waved the breasts and the right thigh as a wave offering before the Lord just as Moses had commanded.