Leviticus 4:24-31

²⁴And he shall lay his hand on the head of the male goat and slaughter it in the place where they slaughter the burnt offering before the Lord; it is a sin offering. ²⁵Then the priest is to take some of the blood of the sin offering with his finger and put it on the horns of the altar of burnt offering; and the rest of its blood he shall pour out at the base of the altar of burnt offering. ²⁶And he shall offer all its fat up in smoke on the altar as in the case of the fat of the sacrifice of peace offerings. So the priest shall make atonement for him regarding his sin, and he will be forgiven.

²⁷‘Now if anyone of the common people sins unintentionally by doing any of the things which the Lord has commanded not to be done, and becomes guilty, ²⁸if his sin which he has committed is made known to him, then he shall bring as his offering a goat, a female without defect, for his sin which he has committed. ²⁹And he shall lay his hand on the head of the sin offering and slaughter the sin offering at the place of the burnt offering. ³⁰The priest shall then take some of its blood with his finger and put it on the horns of the altar of burnt offering; and all the rest of its blood he shall pour out at the base of the altar. ³¹Then he shall remove all its fat, just as the fat was removed from the sacrifice of peace offerings; and the priest shall offer it up in smoke on the altar as a soothing aroma to the Lord. So the priest shall make atonement for him, and he will be forgiven.