Aal-'Imran - 3:86

كَيْفَ يَهْدِي اللّهُ قَوْمًا كَفَرُواْ بَعْدَ إِيمَانِهِمْ وَشَهِدُواْ أَنَّ الرَّسُولَ حَقٌّ وَجَاءهُمُ الْبَيِّنَاتُ وَاللّهُ لاَ يَهْدِي الْقَوْمَ الظَّالِمِينَ
[3:86]
How shall Allah guide a people who disbelieved after their believing and (after) they had borne witness that the Messenger was true and clear arguments had come to them; and Allah does not guide the unjust people.
How shall Allah Guide those who reject Faith after they accepted it and bore witness that the Messenger was true and that Clear Signs had come unto them? but Allah guides not a people unjust.
How shall Allah guide a people who disbelieved after their belief and (after) they bore witness that the messenger is true and after clear proofs (of Allah's Sovereignty) had come unto them. And Allah guideth not wrongdoing folk.