Surah Ash-Shura, verse 14

وَمَا تَفَرَّقُوٓا۟ إِلَّا مِنۢ بَعْدِ مَا جَآءَهُمُ ٱلْعِلْمُ بَغْيًۢا بَيْنَهُمْ ۚ وَلَوْلَا كَلِمَةٌ سَبَقَتْ مِن رَّبِّكَ إِلَىٰٓ أَجَلٍ مُّسَمًّى لَّقُضِىَ بَيْنَهُمْ ۚ وَإِنَّ ٱلَّذِينَ أُورِثُوا۟ ٱلْكِتَـٰبَ مِنۢ بَعْدِهِمْ لَفِى شَكٍّ مِّنْهُ مُرِيبٍ ﴿١٤﴾

42:14 They did not become divided except after the knowledge had come to them, out of envious rivalry between them. Were it not for a prior decree from your Lord until an appointed term, a decisive judgment would already have been passed between them. Indeed, those who inherited the Scripture after them are in disquieting doubt about it