Quran 16:64 from Surah An-Nahl on Divine Marvels.
وَمَآ أَنزَلۡنَا عَلَيۡكَ ٱلۡكِتَٰبَ إِلَّا لِتُبَيِّنَ لَهُمُ ٱلَّذِي ٱخۡتَلَفُواْ فِيهِ وَهُدٗى وَرَحۡمَةٗ لِّقَوۡمٖ يُؤۡمِنُونَ
English translation: And not We revealed to you the Book except that you make clear to them that which they differed in it and (as) a guidance and mercy for a people who believe
Transliteration: wama anzalna alayka al-kitaba illa litubayyina lahumu alladhi ikh'talafu fihi wahudan warahmatan liqawmin yu'minuna