Leviticus

And if his oblation to Jehovah be a burnt-offering of birds, then he shall offer his oblation of turtle-doves, or of young pigeons.

and he shall rend it by the wings thereof, but shall not divide it asunder. And the priest shall burn it upon the altar, upon the wood that is upon the fire: it is a burnt-offering, an offering made by fire, of a sweet savor unto Jehovah.

And according to the law, I may almost say, all things are cleansed with blood, and apart from shedding of blood there is no remission.

And all the fat thereof shall he burn upon the altar, as the fat of the sacrifice of peace-offerings; and the priest shall make atonement for him as concerning his sin, and he shall be forgiven.

Thus shall he do with the bullock; as he did with the bullock of the sin-offering, so shall he do with this; and the priest shall make atonement for them, and they shall be forgiven.