Leviticus 9:8

⁶  And Moses said, This is the thing which the LORD commanded that ye should do: and the glory of the LORD shall appear unto you.

⁷  And Moses said unto Aaron, Go unto the altar, and offer thy sin offering, and thy burnt offering, and make an atonement for thyself, and for the people: and offer the offering of the people, and make an atonement for them; as the LORD commanded.

⁸  Aaron therefore went unto the altar, and slew the calf of the sin offering, which was for himself.

⁹  And the sons of Aaron brought the blood unto him: and he dipped his finger in the blood, and put it upon the horns of the altar, and poured out the blood at the bottom of the altar:

¹⁰  But the fat, and the kidneys, and the caul above the liver of the sin offering, he burnt upon the altar; as the LORD commanded Moses.