Leviticus 9:8 in the King James Version
Aaron therefore went unto the altar, and slew the calf of the sin offering, which was for himself.
Context
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 the LORD commanded.”
8 So Aaron came 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;