Leviticus 4:7

4:7 The priest must put some of the blood on the horns of the altar of fragrant incense that is before the Lord in the Meeting Tent, and all the rest of the bull’s blood he must pour out at the base of the altar of burnt offering that is at the entrance of the Meeting Tent.

Leviticus 4:18

4:18 He must put some of the blood on the horns of the altar ¹  which is before the Lord in the Meeting Tent, and all the rest of the blood he must pour out at the base of the altar of burnt offering that is at the entrance of the Meeting Tent.

[4:18]  ¹ sn See v. 7, where this altar is identified as the altar of fragrant incense.