11:118
وَلَوْ شَآءَ رَبُّكَ لَجَعَلَ ٱلنَّاسَ أُمَّةً وَٰحِدَةً ۖ وَلَا يَزَالُونَ مُخْتَلِفِينَ
walaw shāa rabbuka lajaʿala l-nāsa ummatan wāḥidatan walā yazālūna mukh'talifīna
And if your Lord had willed, He could have made mankind one community; but they will not cease to differ,
— Saheeh International
If your Lord had pleased, He would have made all people a single community, but they continue to have their differences-
— M. A. S. Abdel Haleem
And if your Lord had so willed, He could surely have made mankind one Ummah [nation or community (following one religion i.e. Islâm)] but they will not cease to disagree.
— Muhammad Muhsin Khan & Muhammad Taqi-ud-Din al-Hilali