An Nahl Ayah 64

وَمَآ أَنزَلْنَا عَلَيْكَ ٱلْكِتَـٰبَ إِلَّا لِتُبَيِّنَ لَهُمُ ٱلَّذِى ٱخْتَلَفُواْ فِيهِ‌ۙ وَهُدًى وَرَحْمَةً لِّقَوْمٍ يُؤْمِنُونَ ٦٤ We have revealed to you the Book only to clarify for them what they differed about, and as a guide and mercy for those who believe.