Qur'ān 3:105 · Aal-i-Imran (آل عمران)

وَلَا تَكُونُوا۟ كَٱلَّذِينَ تَفَرَّقُوا۟ وَٱخْتَلَفُوا۟ مِنۢ بَعْدِ مَا جَآءَهُمُ ٱلْبَيِّنَـٰتُ ۚ وَأُو۟لَـٰٓئِكَ لَهُمْ عَذَابٌ عَظِيمٌۭ

And do not be like the ones who became divided and differed after the clear proofs had come to them. And those will have a great punishment.