Leviticus 4:5-7

5And the priest that is anointed shall take of the bull’s blood, and bring it to the tabernacle of the congregation:

6And the priest shall dip his finger in the blood, and sprinkle of the blood seven times before the LORD, before the veil of the sanctuary.

7And the priest shall put some of the blood upon the horns of the altar of sweet incense before the LORD, which is in the tabernacle of the congregation; and shall pour all the blood of the bull at the bottom of the altar of the burnt offering, which is at the door of the tabernacle of the congregation.