Surah At-Taubah Verse 113 - English Translation by Ali Unal
Surah At-Taubahمَا كَانَ لِلنَّبِيِّ وَٱلَّذِينَ ءَامَنُوٓاْ أَن يَسۡتَغۡفِرُواْ لِلۡمُشۡرِكِينَ وَلَوۡ كَانُوٓاْ أُوْلِي قُرۡبَىٰ مِنۢ بَعۡدِ مَا تَبَيَّنَ لَهُمۡ أَنَّهُمۡ أَصۡحَٰبُ ٱلۡجَحِيمِ
It is not for the Prophet and those who believe to ask God for the forgiveness of those who associate partners with God even though they be near of kin, after it has become clear to them that they (died polytheists and therefore) are condemned to the Blazing Flame