Surah Ash-Shura, Verse 8

وَلَوۡ شَآءَ ٱللَّهُ لَجَعَلَهُمۡ أُمَّةࣰ وَٰحِدَةࣰ وَلَٰكِن يُدۡخِلُ مَن يَشَآءُ فِي رَحۡمَتِهِۦۚ وَٱلظَّٰلِمُونَ مَا لَهُم مِّن وَلِيࣲّ وَلَا نَصِيرٍ ﴿٨﴾

Ve lev şaellahü le cealehüm ümmetev vahıdetev ve lakiy yüdhılü mey yeşaü fı rahmetih vezzalimune ma lehüm miv veliyyiv ve la nesıyr

“If God had so willed, He could have made them a single people; but He admits whom He will to His Mercy; and the Wrong-doers will have no protector nor helper”