An-Nisaa • EN-TAFSIR-IBN-ABBAS
﴿ يَٰٓأَهْلَ ٱلْكِتَٰبِ لَا تَغْلُوا۟ فِى دِينِكُمْ وَلَا تَقُولُوا۟ عَلَى ٱللَّهِ إِلَّا ٱلْحَقَّ ۚ إِنَّمَا ٱلْمَسِيحُ عِيسَى ٱبْنُ مَرْيَمَ رَسُولُ ٱللَّهِ وَكَلِمَتُهُۥٓ أَلْقَىٰهَآ إِلَىٰ مَرْيَمَ وَرُوحٌۭ مِّنْهُ ۖ فَـَٔامِنُوا۟ بِٱللَّهِ وَرُسُلِهِۦ ۖ وَلَا تَقُولُوا۟ ثَلَٰثَةٌ ۚ ٱنتَهُوا۟ خَيْرًۭا لَّكُمْ ۚ إِنَّمَا ٱللَّهُ إِلَٰهٌۭ وَٰحِدٌۭ ۖ سُبْحَٰنَهُۥٓ أَن يَكُونَ لَهُۥ وَلَدٌۭ ۘ لَّهُۥ مَا فِى ٱلسَّمَٰوَٰتِ وَمَا فِى ٱلْأَرْضِ ۗ وَكَفَىٰ بِٱللَّهِ وَكِيلًۭا ﴾
“O FOLLOWERS of the Gospel! Do not overstep the bounds [of truth] in your religious beliefs, and do not say of God anything but the truth. The Christ Jesus, son of Mary, was but God's Apostle - [the fulfilment of] His promise which He had conveyed unto Mary - and a soul created by Him. Believe, then, in God and His apostles, and do not say, "[God is] a trinity". Desist [from this assertion] for your own good. God is but One God; utterly remote is He, in His glory, from having a son: unto Him belongs all that is in the heavens and all that is on earth; and none is as worthy of trust as God.”
Allah then revealed about the Nestorian Christians of Najran who claimed that Jesus was the son of Allah and that Jesus and the Lord are partners, saying: (O People of the Scripture! Do not exaggerate) do not be extreme (in your religion) for this is not the right course (nor utter aught concerning Allah save the Truth. The Messiah, Jesus son of Mary, was only a messenger of Allah, and His word which He conveyed unto Mary) and through His word he became a created being, (and a spirit from Him) and through His command, Jesus became a son without a father. (So believe in Allah and His messengers) all the messengers including Jesus, (and say not �Three�) a son, father and wife. (Cease!) from making such a claim and repent ((it is) better for you!) than such a claim. (Allah is only One God) without a son or partner. (Far is it removed from His Transcendent Majesty that he should have a son. His is all that is in the heavens and all that is in the earth) are His servants. (And Allah is sufficient as Defender) as Lord of all created beings and He is witness of what He says about Jesus.