An-Nahl 16:64

وَمَآ أَنزَلۡنَا عَلَيۡكَ ٱلۡكِتَٰبَ إِلَّا لِتُبَيِّنَ لَهُمُ ٱلَّذِي ٱخۡتَلَفُواْ فِيهِ وَهُدٗى وَرَحۡمَةٗ لِّقَوۡمٖ يُؤۡمِنُونَ 64

And We have not revealed to you the Book, [O Muhammad], except for you to make clear to them that wherein they have differed and as guidance and mercy for a people who believe