Clear Quran
Ali 'Imran · 3:105
وَلَا تَكُونُوا كَالَّذِينَ تَفَرَّقُوا وَاخْتَلَفُوا مِنْ بَعْدِ مَا جَاءَهُمُ الْبَيِّنَاتُ ۚ وَأُولَٰئِكَ لَهُمْ عَذَابٌ عَظِيمٌ
And do not be like those who split ˹into sects˺ and differed after clear proofs had come to them. It is they who will suffer a tremendous punishment.