Leviticus 13:31

31 But if, when the priest examines the sore, it does not seem to be more than skin deep and there is no black hair in it, then the priest is to isolate the affected person for seven days.
Scripture quoted by permission.  Quotations designated (NIV) are from THE HOLY BIBLE: NEW INTERNATIONAL VERSION®.  NIV®.  Copyright © 1973, 1978, 1984, 2011 by Biblica.  All rights reserved worldwide.

Leviticus 13:37

37 If, however, the sore is unchanged so far as the priest can see, and if black hair has grown in it, the affected person is healed. They are clean, and the priest shall pronounce them clean.
Scripture quoted by permission.  Quotations designated (NIV) are from THE HOLY BIBLE: NEW INTERNATIONAL VERSION®.  NIV®.  Copyright © 1973, 1978, 1984, 2011 by Biblica.  All rights reserved worldwide.