Surah Adh-Dhariyat Verse 51

وَلَا تَجْعَلُوا مَعَ اللَّهِ إِلَٰهًا آخَرَ ۖ إِنِّي لَكُمْ مِنْهُ نَذِيرٌ مُبِينٌ

And do not make [as equal] with Allah another deity. Indeed, I am to you from Him a clear warner