Leviticus 4:7, 18, 25

The priest must also put some of the blood on the corners of the altar of incense that stands before the LORD in the Meeting Tent. The rest of the blood he must pour out at the bottom of the altar of burnt offering, which is at the entrance of the Meeting Tent.

Then he must put some of the blood on the corners of the altar that is before the LORD in the Meeting Tent. The priest must pour out the rest of the blood at the bottom of the altar of burnt offering, which is at the entrance to the Meeting Tent.

The priest must take some of the blood of the sin offering on his finger and put it on the corners of the altar of burnt offering. He must pour out the rest of the blood at the bottom of the altar of burnt offering.