Leviticus 14:21-22

“If he is poor and cannot afford these offerings, he will bring one male lamb as a Compensation-Offering to be offered as a Wave-Offering to make atonement for him, and with it a couple of quarts of fine flour mixed with oil for a Grain-Offering, a pint of oil, and two doves or pigeons which he can afford, one for an Absolution-Offering and the other for a Whole-Burnt-Offering.