لَقَد كَفَرَ الَّذينَ قالوا إِنَّ اللَّهَ ثالِثُ ثَلاثَةٍ ۘ وَما مِن إِلـٰهٍ إِلّا إِلـٰهٌ واحِدٌ ۚ وَإِن لَم يَنتَهوا عَمّا يَقولونَ لَيَمَسَّنَّ الَّذينَ كَفَروا مِنهُم عَذابٌ أَليمٌ

They have certainly disbelieved who say, "Allah 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.