Leviticus 4:8-12
8 He shall remove all the fat from the bull of the sin offering—the fat that covers the inner parts or is connected to them,
9 both kidneys with the fat on them near the loins, and the covering of the liver, which he will remove with the kidneys—
10 just as the fat is removed from the ox sacrificed as a fellowship offering. Then the priest shall burn them on the altar of burnt offering.
11 But the hide of the bull and all its flesh, as well as the head and legs, the inner parts and offal—
12 that is, all the rest of the bull—he must take outside the camp to a place ceremonially clean, where the ashes are thrown, and burn it in a wood fire on the ash heap.