Leviticus 8:14-17

14And he brought the bull for the sin offering. Then Aaron and his sons laid their hands on the head of the bull for the sin offering,

15and Moses killed it. Then he took the blood, and put some on the horns of the altar all around with his finger, and purified the altar. And he poured the blood at the base of the altar, and consecrated it, to make atonement for it.

16Then he took all the fat that was on the entrails, the fatty lobe attached to the liver, and the two kidneys with their fat, and Moses burned them on the altar.

17But the bull, its hide, its flesh, and its offal, he burned with fire outside the camp, as the Lord had commanded Moses.