And We sent not before you any messenger except that We revealed to him that, "There is no deity except Me, so worship Me."
The Saheeh International Quran Translation
وَمَآ أَرْسَلْنَا مِن قَبْلِكَ مِن رَّسُولٍ إِلَّا نُوحِىٓ إِلَيْهِ أَنَّهُۥ لَآ إِلَٰهَ إِلَّآ أَنَا۠ فَٱعْبُدُونِAnd We sent not before you any messenger except that We revealed to him that, "There is no deity except Me, so worship Me."