Leviticus 4:19

4:18 And he shall put some of the blood on the horns of the altar which is before the LORD, which is in the tabernacle of meeting; and he shall pour the remaining blood at the base of the altar of burnt offering, which is at the door of the tabernacle of meeting.

4:19 He shall take all the fat from it and burn it on the altar.

4:20 And he shall do with the bull as he did with the bull as a sin offering; thus he shall do with it. So the priest shall make atonement for them, and it shall be forgiven them.