Leviticus 4:30-35

30The kohen is to take some of its blood with his finger and put it on the horns of the altar of burnt offering. He is to pour out the rest of the blood at the base of the altar.

31He is to take away all its fat, just like the fat is taken away from off of the sacrifice of fellowship offerings. And the kohen shall burn it on the altar for a soothing aroma to Adonai. So the kohen is to make atonement for him—and he will be forgiven.

32“Now if he brings a lamb as his sacrifice for a sin offering, he is to bring a female without blemish.

33He is to lay his hand on the head of the sin offering and slaughter it at the place where they slaughter the burnt offering.

34The kohen shall take some of the blood of the sin offering with his finger and put it on the horns of the altar of burnt offering. Then all the rest of its blood he is to pour out at the base of the altar.

35He must remove all its fat, just as the fat of the lamb is taken away from the sacrifice of fellowship offerings. Then the kohen is to burn them on the altar, on Adonai’s offerings by fire. So the kohen should make atonement for him over the sin that he committed—and he will be forgiven.