Leviticus 4:29 (KJV)

And if any one of the common people sin through ignorance, while he doeth somewhat against any of the commandments of the Lord concerning things which ought not to be done, and be guilty;

Or if his sin, which he hath sinned, come to his knowledge: then he shall bring his offering, a kid of the goats, a female without blemish, for his sin which he hath sinned.

And he shall lay his hand upon the head of the sin offering, and slay the sin offering in the place of the burnt offering.

And the priest shall take of the blood thereof with his finger, and put it upon the horns of the altar of burnt offering, and shall pour out all the blood thereof at the bottom of the altar.

And he shall take away all the fat thereof, as the fat is taken away from off the sacrifice of peace offerings; and the priest shall burn it upon the altar for a sweet savour unto the Lord; and the priest shall make an atonement for him, and it shall be forgiven him.