Leviticus 4:29-32

²⁹And he shall lay his hand upon the head of the sin offering, and slay the sin offering in the place of the burnt offering.

³⁰And the priest shall take of the blood thereof with his finger, and put it upon the horns of the altar of burnt offering, and shall pour out all the blood thereof at the bottom of the altar.

³¹And he shall take away all the fat thereof, as the fat is taken away from off the sacrifice of peace offerings; and the priest shall burn it upon the altar for a sweet savour unto the LORD; and the priest shall make an atonement for him, and it shall be forgiven him.

³²And if he bring a lamb for a sin offering, he shall bring it a female without blemish.