Leviticus 4:8-10, 26, 31, 35

And all the fat of the bull of the sin offering he shall remove from it, the fat that covers the entrails and all the fat that is on the entrails and the two kidneys with the fat that is on them at the loins and the long lobe of the liver that he shall remove with the kidneys (just as these are taken from the ox of the sacrifice of the peace offerings); and the priest shall burn them on the altar of burnt offering.

And all its fat he shall burn on the altar, like the fat of the sacrifice of peace offerings. So the priest shall make atonement for him for his sin, and he shall be forgiven.

And all its fat he shall remove, as the fat is removed from the peace offerings, and the priest shall burn it on the altar for a pleasing aroma to the LORD. And the priest shall make atonement for him, and he shall be forgiven.

And all its fat he shall remove as the fat of the lamb is removed from the sacrifice of peace offerings, and the priest shall burn it on the altar, on top of the LORD’s food offerings. And the priest shall make atonement for him for the sin which he has committed, and he shall be forgiven.