Leviticus 14:31-33

³¹even such as he is able to get, the one for a sin-offering, and the other for a burnt-offering, with the meal-offering: and the priest shall make atonement for him that is to be cleansed before Jehovah.

³²This is the law of him in whom is the plague of leprosy, who is not able to get that which pertaineth to his cleansing.

³³And Jehovah spake unto Moses and unto Aaron, saying,