Leviticus 4:7-9

⁷And the priest shall put some of the blood upon the horns of the altar of sweet incense before the Lord in the tabernacle of ordinance, and all the (remaining) blood of the bullock he shall pour out at the foundation of the altar of burnt sacrifice which is at the door of the tabernacle of ordinance.

⁸And all the fat of the bullock of the sin offering he shall separate from it; the fat which covereth the inwards, and all the fat which is upon the inwards,

⁹And the two kidneys, and the fat which is upon them that is by the flanks; and the caul that is upon the liver, together with the kidneys, he shall remove,