Leviticus 4:8-10

Revised Standard Version

⁸ And all the fat of the bull of the sin offering he shall take from it, the fat that covers the entrails and all the fat that is on the entrails, ⁹ and the two kidneys with the fat that is on them at the loins, and the appendage of the liver which he shall take away with the kidneys ¹⁰ (just as these are taken from the ox of the sacrifice of the peace offerings), and the priest shall burn them upon the altar of burnt offering.