لَّقَدْ كَفَرَ ٱلَّذِينَ قَالُوٓا۟ إِنَّ ٱللَّهَ ثَالِثُ ثَلَـٰثَةٍ ۘ وَمَا مِنْ إِلَـٰهٍ إِلَّآ إِلَـٰهٌ وَٰحِدٌ ۚ وَإِن لَّمْ يَنتَهُوا۟ عَمَّا يَقُولُونَ لَيَمَسَّنَّ ٱلَّذِينَ كَفَرُوا۟ مِنْهُمْ عَذَابٌ أَلِيمٌ
laqad kafara alladhīna qālū inna l-laha thālithu thalāthatin wamā min ilāhin illā ilāhun wāḥidun wa-in lam yantahū ʿammā yaqūlūna layamassanna alladhīna kafarū min'hum ʿadhābun alīmun
They have certainly disbelieved who say, "Allāh is the third of three." And there is no god except one God. And if they do not desist from what they are saying, there will surely afflict the disbelievers among them a painful punishment.
— Saheeh International
Those people who say that God is the third of three are defying [the truth]: there is only One God. If they persist in what they are saying, a painful punishment will afflict those of them who persist.
— M. A. S. Abdel Haleem
Surely, disbelievers are those who said: "Allâh is the third of the three (in a Trinity)." But there is no Ilâh (god) (none who has the right to be worshipped) but One Ilâh (God -Allâh). And if they cease not from what they say, verily, a painful torment will befall on the disbelievers among them.
— Muhammad Muhsin Khan & Muhammad Taqi-ud-Din al-Hilali