مَا كَانَ لِلنَّبِيِّ وَالَّذِينَ آمَنُواْ أَن يَسْتَغْفِرُواْ لِلْمُشْرِكِينَ وَلَوْ كَانُواْ أُوْلِي قُرْبَى مِن بَعْدِ مَا تَبَيَّنَ لَهُمْ أَنَّهُمْ أَصْحَابُ الْجَحِيمِ
[9:113]
It is not (fit) for the Prophet and those who believe that they should ask forgiveness for the polytheists, even though they should be near relatives, after it has become clear to them that they are inmates of the flaming fire.
It is not fitting, for the Prophet and those who believe, that they should pray for forgiveness for Pagans, even though they be of kin, after it is clear to them that they are companions of the Fire.
It is not for the Prophet, and those who believe, to pray for the forgiveness of idolaters even though they may be near of kin (to them) after it hath become clear that they are people of hell-fire.