Quran 21:25 from Surah Al-Anbiyaa on Divine Marvels.
وَمَآ أَرۡسَلۡنَا مِن قَبۡلِكَ مِن رَّسُولٍ إِلَّا نُوحِيٓ إِلَيۡهِ أَنَّهُۥ لَآ إِلَٰهَ إِلَّآ أَنَا۠ فَٱعۡبُدُونِ
English translation: And not We sent before you before you any Messenger but We reveal(ed) to him that [He] (There is) no god except Me so worship Me
Transliteration: wama arsalna min qablika min rasulin illa nuhi ilayhi annahu la ilaha illa ana fa-u'buduni