Leviticus 12:8
And if her hand find not sufficiency, and she is not able to offer a lamb, she shall take two turtles, or two young pigeons, one for a holocaust, and another for sin: and the priest shall pray for her, and so she shall be cleansed.

Leviticus 13:2
The man in whose skin or flesh shall arise a different colour or a blister, or as it were something shining, that is the stroke of the leprosy, shall be brought to Aaron the priest, or any or of his sons.

Deuteronomy 24:8
Observe diligently that thou incur not the stroke of the leprosy, but thou shalt do whatsoever the priests of the Levitical race shall teach thee, according to what I have commanded them, and fulfil thou it carefully.