istaghfir lahum aw laa tastaghfir lahum in tastaghfir lahum sab'eena marratan falany yaghfiral laahu lahum; zaalika bi annahum kafaroo billaahi wa Rasoolih; wallaahu laa yahdil qawmal faasiqeen
Ask forgiveness for them, [O Muhammad], or do not ask forgiveness for them. If you should ask forgiveness for them seventy times - never will Allah forgive them. That is because they disbelieved in Allah and His Messenger, and Allah does not guide the defiantly disobedient people.