Leviticus 4:27-31

And if any one of the common people sin unwittingly, in doing any of the things which Jehovah hath commanded not to be done, and be guilty; if his sin, which he hath sinned, be made known to him, then he shall bring for his oblation a goat, 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 kill the sin-offering in the place of 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 all the blood thereof shall he pour out at the base of the altar. And all the fat thereof shall he take away, 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 savor unto Jehovah; and the priest shall make atonement for him, and he shall be forgiven.