Leviticus 4:25-26

25The priest will put his finger in the blood of the dead animal. He will put some of it on the horns of the altar. He will pour the blood that he did not use onto the ground. He will pour it in front of the altar.

26Then the priest will cut all the fat from the goat. And he will burn it on the altar. He will do this as he did for the friendship offering. This is how the priest will make atonement for the leader's sin. Then God will forgive the leader.