If, as far as the priest can see, the scall has stayed the same ¹  and black hair has sprouted in it, the scall has been healed; the person is clean. So the priest is to pronounce him clean. ² 

But if the priest examines the scall infection and it does not appear to be deeper than the skin, ¹  and there is no black hair in it, then the priest is to quarantine the person with the scall infection for seven days. ²