Az-Zumar 39:4

Law arada Allahu an yattakhithawaladan lastafa mimma yakhluqu mayashao subhanahu huwa Allahu alwahidualqahhar

If Allāh had intended to take a son, He could have chosen from what He creates whatever He willed. Exalted is He; He is Allāh, the One, the Prevailing.

Had Allah opted to have a son of His own, He would have definitely chosen anyone, as He wished, out of what He had created. (But), Pure is He. He is Allah, the Only One, the All-Dominant.