Leviticus 4:29-32

²⁹And he shall lay his hand on the head of the sin-offering, and slaughter the sin-offering at the place of the burnt-offering.

³⁰And the priest shall take of the blood thereof with his finger, and put it on 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-offering; and the priest shall burn it on the altar, for a sweet odour to Jehovah; and the priest shall make atonement for him, and it shall be forgiven him.

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