Surah Al-An'am 6:159

إِنَّ ٱلَّذِينَ فَرَّقُوا۟ دِينَهُمْ وَكَانُوا۟ شِيَعًا لَّسْتَ مِنْهُمْ فِى شَىْءٍ ۚ إِنَّمَآ أَمْرُهُمْ إِلَى ٱللَّهِ ثُمَّ يُنَبِّئُهُم بِمَا كَانُوا۟ يَفْعَلُونَ

Indeed, those who have divided their religion and become sects - you, [O Muḥammad], are not [associated] with them in anything. Their affair is only [left] to Allāh; then He will inform them about what they used to do.

Translation: Saheeh International

Tafsir

Those who have sundered their religion by being at variance over it accepting some aspects of it and rejecting others and have become differing parties sects with regard to such matters a variant reading for farraqū ‘they have sundered’ has fāraqū meaning that they have abandoned the religion to which they were …

Excerpt from Tafsir al-Jalalayn, commentary on 6:159, via Quran.com. The reader has the full commentary and 9 more tafsirs.