يَا أَهْلَ الْكِتَابِ لاَ تَغْلُواْ فِي دِينِكُمْ وَلاَ تَقُولُواْ عَلَى اللّهِ إِلاَّ الْحَقِّ إِنَّمَا الْمَسِيحُ عِيسَى ابْنُ مَرْيَمَ رَسُولُ اللّهِ وَكَلِمَتُهُ أَلْقَاهَا إِلَى مَرْيَمَ وَرُوحٌ مِّنْهُ فَآمِنُواْ بِاللّهِ وَرُسُلِهِ وَلاَ تَقُولُواْ ثَلاَثَةٌ انتَهُواْ خَيْرًا لَّكُمْ إِنَّمَا اللّهُ إِلَهٌ وَاحِدٌ سُبْحَانَهُ أَن يَكُونَ لَهُ وَلَدٌ لَّهُ مَا فِي السَّمَاوَات وَمَا فِي الأَرْضِ وَكَفَى بِاللّهِ وَكِيلاً
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سورة النساء
(4/171) O People of the Book! Do not exceed the limits in your religion and do not speak (lies) against Allah but (speak) the truth; the Messiah Jesus, son of Mary is only a Messenger of Allah and His Word. (Holy Spirit) conveyed that to Mary and he is a spirit (from Holy Spirit); believe therefore in Allah and His Messengers, and do not say: “Three (gods; the father, the son and the Holy Spirit) desist, it is better for you”. Allah is only one Deity. Exalt Him above having a son; whatever is in the heavens and whatever is in the earth is His; and Allah is All-Sufficient as a Surrogate.
Surah An-Nisa