Leviticus 5:7-8

⁷And if he can’t afford a sheep, he shall bring for his sin which he has sinned, two turtledoves or two young pigeons to the Lord; one for a sin-offering, and the other for a burnt offering.

⁸And he shall bring them to the priest, and the priest shall bring the sin-offering first; and the priest shall pinch off the head from the neck, and shall not divide the body.