Surah Al-Anaam Verse 159 - English Translation by Safi Kaskas
Surah Al-Anaamإِنَّ ٱلَّذِينَ فَرَّقُواْ دِينَهُمۡ وَكَانُواْ شِيَعٗا لَّسۡتَ مِنۡهُمۡ فِي شَيۡءٍۚ إِنَّمَآ أَمۡرُهُمۡ إِلَى ٱللَّهِ ثُمَّ يُنَبِّئُهُم بِمَا كَانُواْ يَفۡعَلُونَ
As for those who have broken the unity of their faith and have divided into different sects, you [Prophet] should have nothing to do with them. Their case rests with God, and in time He will make them understand what they were doing wrong