Leviticus 16:14-15

14He is then to take some of the blood of the bull and sprinkle it with his finger on the atonement cover, on the east side. Before the atonement cover he is to sprinkle some of the blood with his finger seven times.

15“Then he is to slaughter the goat of the sin offering which is for the people, bring its blood behind the curtain, and do with it as he did with the blood of the bull—sprinkle it upon the atonement cover, and before the atonement cover.