وَلا تَكونوا كَالَّذينَ تَفَرَّقوا وَاختَلَفوا مِن بَعدِ ما جاءَهُمُ البَيِّناتُ ۚ وَأُولـٰئِكَ لَهُم عَذابٌ عَظيمٌ

Don’t be like those who split and disagreed after receiving clear proofs. For them is a severe punishment.