Leviticus 3:2-4

New Century Version

² The person must put his hand on the animal’s head and kill it at the entrance to the Meeting Tent. Then Aaron’s sons, the priests, must sprinkle the blood on all sides of the altar. ³ From the fellowship offering he must make a sacrifice by fire to the Lord. He must offer the fat of the animal’s inner organs (both the fat that is in them and that covers them), ⁴ both kidneys with the fat that is on them near the lower back muscle, and the best part of the liver, which he will remove with the kidneys.