Ash-shûrâ 42:14
وَمَا تَفَرَّقُوا إِلَّا مِن بَعْدِ مَا جَاءَهُمُ الْعِلْمُ بَغْيًا بَيْنَهُمْ ۚ وَلَوْلَا كَلِمَةٌ سَبَقَتْ مِن رَّبِّكَ إِلَىٰ أَجَلٍ مُّسَمًّى لَّقُضِيَ بَيْنَهُمْ ۚ وَإِنَّ الَّذِينَ أُورِثُوا الْكِتَابَ مِن بَعْدِهِمْ لَفِي شَكٍّ مِّنْهُ مُرِيبٍ ١٤
Wama tafarraqoo illa min baAAdi ma jaahumu alAAilmu baghyan baynahum walawla kalimatun sabaqat min rabbika ila ajalin musamman laqudiya baynahum wainna allatheena oorithoo alkitaba min baAAdihim lafee shakkin minhu mureebin
And they did not break up into factions, but only after knowledge had reached them, merely on account of their mutual obstinacy (and stubbornness). And had the command of your Lord not gone forth concerning (a respite for) an appointed time, the judgment would have been given between them. And verily, those who were made inheritors of the Book after them are themselves in deceitful doubt about it. (42:14)