It is not [befitting] for Allah to take a son; exalted is He! When He decrees an-Quran Verses

19-Surah Maryam ( Mary ) 35

It is not [befitting] for Allah to take a son; exalted is He! When He decrees an affair, He only says to it, ‘ Be,’ and it is.

﴿35﴾مَا كَانَ لِلَّهِ أَن يَتَّخِذَ مِن وَلَدٍ ۖ سُبْحَانَهُ ۚ إِذَا قَضَىٰ أَمْرًا فَإِنَّمَا يَقُولُ لَهُ كُن فَيَكُونُ

Quran's Tafhim ( explanation)

*22) In vv.1-35, it has been shown that the "Doctrine of the son of God" in regard to Prophet Jesus is absolutely wrong. For just as the miraculous birth of Prophet John did not make him the `son of God', so the miraculous birth of Prophet Jesus could not make him the son of God. For the births of both were the result of the same sort of miracle as they have been mentioned together in the same context in the Gospel of Luke. Therefore, it is mere distortion that the Christians should regard one as the servant of God and the other as the son of God.