Quran 16:51

۞ وَقَالَ ٱللَّهُ لَا تَتَّخِذُوٓا۟ إِلَٰهَيْنِ ٱثْنَيْنِ ۖ إِنَّمَا هُوَ إِلَٰهٌۭ وَٰحِدٌۭ ۖ فَإِيَّٰىَ فَٱرْهَبُونِ

And Allah has said, "Do not take for yourselves two deities. He is but one God, so fear only Me."

Translation · Saheeh International