Surah Al-Baqarah, ayah 176

ذَٰلِكَ بِأَنَّ ٱللَّهَ نَزَّلَ ٱلۡكِتَٰبَ بِٱلۡحَقِّۗ وَإِنَّ ٱلَّذِينَ ٱخۡتَلَفُواْ فِي ٱلۡكِتَٰبِ لَفِي شِقَاقِۭ بَعِيدٖ ١٧٦

Dhālika bi annallāha nazzalal-kitāba bil-haqqi wa innal-ladhīnakhtalafū fil-kitābi lafī shiqāqi ba'īd

That is [deserved by them] because Allāh has sent down the Book in truth. And indeed, those who differ over the Book are in extreme dissension.