Leviticus 9:9 WEB

⁷  Moses said to Aaron, 'Draw near to the altar, and offer your sin offering, and your burnt offering, and make atonement for yourself, and for the people; and offer the offering of the people, and make atonement for them; as Yahweh commanded.'

⁸  So Aaron drew near to the altar, and killed the calf of the sin offering, which was for himself.

⁹  The sons of Aaron presented the blood to him; and he dipped his finger in the blood, and put it on the horns of the altar, and poured out the blood at the base of the altar:

¹⁰  but the fat, and the kidneys, and the cover from the liver of the sin offering, he burned upon the altar; as Yahweh commanded Moses.

¹¹  The flesh and the skin he burned with fire outside the camp.