Leviticus 3:2; Leviticus 3:8; Leviticus 3:13

2 You are to lay your hand on the head of your offering and slaughter it at the entrance to the tent of meeting. Then Aaron’s sons the priests shall splash the blood against the sides of the altar.
8 lay your hand on its head and slaughter it in front of the tent of meeting. Then Aaron’s sons shall splash its blood against the sides of the altar.
13 lay your hand on its head and slaughter it in front of the tent of meeting. Then Aaron’s sons shall splash its blood against the sides of the altar.