Leviticus 9:8-10

21st Century King James Version

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 burned upon the altar, as the Lord commanded Moses.