Leviticus 4:29-31

CLV(i) 29 He will support his hand on the head of the sin offering and slay the sin offering in the place of the ascent offering. 30 And the priest will take some of its blood with his finger and put it on the horns of the altar of ascent offering. All the rest of its blood shall he pour out at the foundation of the altar. 31 All its fat shall he take away, just as the fat is taken away from the sacrifice of peace offerings. Then the priest will cause it to fume on the altar as a fragrant odor to Yahweh. Thus the priest will make a propitiatory shelter over him, and it will be pardoned him.