يَٰٓأَهۡلَ ٱلۡكِتَٰبِ لَا تَغۡلُواْ فِي دِينِكُمۡ وَلَا تَقُولُواْ عَلَى ٱللَّهِ إِلَّا ٱلۡحَقَّۚ إِنَّمَا ٱلۡمَسِيحُ عِيسَى ٱبۡنُ مَرۡيَمَ رَسُولُ ٱللَّهِ وَكَلِمَتُهُۥٓ أَلۡقَىٰهَآ إِلَىٰ مَرۡيَمَ وَرُوحٞ مِّنۡهُۖ فَـَٔامِنُواْ بِٱللَّهِ وَرُسُلِهِۦۖ وَلَا تَقُولُواْ ثَلَٰثَةٌۚ ٱنتَهُواْ خَيۡرٗا لَّكُمۡۚ إِنَّمَا ٱللَّهُ إِلَٰهٞ وَٰحِدٞۖ سُبۡحَٰنَهُۥٓ أَن يَكُونَ لَهُۥ وَلَدٞۘ لَّهُۥ مَا فِي ٱلسَّمَٰوَٰتِ وَمَا فِي ٱلۡأَرۡضِۗ وَكَفَىٰ بِٱللَّهِ وَكِيلٗا
Yaaa Ahlal Kitaabi laa taghloo fee deenikum wa laa taqooloo 'alal laahi illalhaqq; innamal Maseehu 'Eesab-nu-Maryama Rasoolul laahi wa Kalimatuhooo alqaahaaa ilaa Maryama wa roohum minhum fa aaminoo billaahi wa Rusulihee wa laa taqooloo salaasah; intahoo khairallakum; innamal laahu Ilaahunw Waahid, Subhaanahooo any yakoona lahoo walad; lahoo maa fissamaawaati wa maa fil ard; wa kafaa billaahi Wakeelaa
O People of the Book! Commit no excesses in your religion: Nor say of Allah aught but the truth. Christ Jesus the son of Mary was (no more than) a messenger of Allah, and His Word, which He bestowed on Mary, and a spirit proceeding from Him: so believe in Allah and His messengers. Say not "Trinity": desist: it will be better for you: for Allah is one Allah: Glory be to Him: (far exalted is He) above having a son. To Him belong all things in the heavens and on earth. And enough is Allah as a Disposer of affairs.
— An-Nisa' (ٱلنِّسَاء), 4:171