Surah Al-Nahl (The Bees), Verse 64

وَمَاۤ اَنْزَلْنَا عَلَیْكَ الْكِتٰبَ اِلَّا لِتُبَیِّنَ لَهُمُ الَّذِی اخْتَلَفُوْا فِیْهِ وَهُدًی وَّرَحْمَةً لِّقَوْمٍ یُّؤْمِنُوْنَ ۟

Wa maaa anzalnaa 'alaikal Kitaaba illaa litubaiyina lahumul lazikh talafoo feehi wa hudanw wa rahmatal liqawminy yu'minoon

“And We sent down the Book to thee for the express purpose, that thou shouldst make clear to them those things in which they differ, and that it should be a guide and a mercy to those who believe.”

Quran 16:64 (Yusuf Ali Translation)