2 : 176
ذَٰلِكَ بِأَنَّ ٱللَّهَ نَزَّلَ ٱلۡكِتَٰبَ بِٱلۡحَقِّۗ وَإِنَّ ٱلَّذِينَ ٱخۡتَلَفُواْ فِي ٱلۡكِتَٰبِ لَفِي شِقَاقِۭ بَعِيدٖ
That is because Allah has sent down the Book in truth. And those who differ over the Book are surely in extreme dissension.