Translation of the meanings Ayah 73 Surah Al-Mā’idah - English Translation - Rowwad Translation Center - The Noble Qur'an Encyclopedia

Ayah: 73

لَّقَدۡ كَفَرَ ٱلَّذِينَ قَالُوٓاْ إِنَّ ٱللَّهَ ثَالِثُ ثَلَٰثَةٖۘ وَمَا مِنۡ إِلَٰهٍ إِلَّآ إِلَٰهٞ وَٰحِدٞۚ وَإِن لَّمۡ يَنتَهُواْ عَمَّا يَقُولُونَ لَيَمَسَّنَّ ٱلَّذِينَ كَفَرُواْ مِنۡهُمۡ عَذَابٌ أَلِيمٌ

They have certainly disbelieved, those who say, “Allah is one of Three^[57].” None has the right to be worshiped except One God. If they do not desist from saying this, those who disbelieve from among them will be afflicted with a painful punishment.

[57] i.e., a part of the three, referring to the Christian concept of the Trinity.