An-Nisa 4:171 يا اهل الكتاب لا تغلوا في دينكم ولا تقولوا على الله الا الحق انما المسيح عيسى ابن مريم رسول الله وكلمته القاها الى مريم وروح منه فامنوا بالله ورسله ولا تقولوا ثلاثة انتهوا خيرا لكم انما الله الاه واحد سبحانه ان يكون له ولد له ما في السماوات وما في الارض وكفى بالله وكيلا ١٧١

People of the Book, do not go to excess in your religion, and do not say anything about God except the truth: the Messiah, Jesus, son of Mary, was nothing more than a messenger of God, His word, directed to Mary, a spirit from Him. So believe in God and His messengers and do not speak of a ‘Trinity’- stop [this], that is better for you- God is only one God, He is far above having a son, everything in the heavens and earth belongs to Him and He is the best one to trust.