هود — Hud Ayat 118

وَلَوْ شَاۤءَ رَبُّكَ لَجَعَلَ النَّاسَ اُمَّةً وَّاحِدَةً وَّلَا يَزَالُوْنَ مُخْتَلِفِيْنَۙ

Wa lau syā'a rabbuka laja‘alan-nāsa ummataw wāḥidataw wa lā yazālūna mukhtalifīn(a).

"And if your Lord had willed, He could have made mankind one community; but they will not cease to differ."