Leviticus 13:34-36

Complete Jewish Bible

³⁴ On the seventh day the cohen is to examine the crusted area; and if he sees that the crusted area has not spread on the skin and does not appear to be deeper than the skin around it, then the cohen is to declare him clean; he is to wash his clothes and be clean. ³⁵ But if the crusted area spreads after his purification, ³⁶ then the cohen is to examine him; and if he sees that the crusted area has spread on the skin, the cohen is not to look for yellow hair; he is unclean.