Leviticus 9:7-9

Young's Literal Translation

⁷ And Moses saith unto Aaron, `Draw near unto the altar, and make thy sin-offering, and thy burnt-offering, and make atonement for thyself, and for the people, and make the offering of the people, and make atonement for them, as Jehovah hath commanded.'

⁸ And Aaron draweth near unto the altar, and slaughtereth the calf of the sin-offering, which [is] for himself;

⁹ and the sons of Aaron bring the blood near unto him, and he dippeth his finger in the blood, and putteth [it] on the horns of the altar, and the blood he hath poured out at the foundation of the altar;