The complexions clarify the insides [when Imam Qa`em (mgehr) arises]
‘Does God need to know guilty people by their marks, despite the fact that he created them?!’
I asked [again], ‘May I be thy ransomed! What is the meaning of the verse, then?’
 The Imam (pbuh) stated, ‘When Imam Qa`em (mgehr) arises, God gives (grant) him the science of knowing [sinners by] their marks (so he knows them by their complexions and confronts them, then)”