« 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. «
(The Holy Quran, Sura 4 An-Nisa, verse 171)