Prohibition of Shirk (Polytheism)

وَلَا تَدْعُ مِن دُونِ ٱللَّهِ مَا لَا يَنفَعُكَ وَلَا يَضُرُّكَ ۖ فَإِن فَعَلْتَ فَإِنَّكَ إِذًا مِّنَ ٱلظَّـٰلِمِينَ

And do not invoke besides Allāh that which neither benefits you nor harms you, for if you did, then indeed you would be of the wrongdoers.'"

وَلَا تَدْعُ مَعَ ٱللَّهِ إِلَـٰهًا ءَاخَرَ ۘ لَآ إِلَـٰهَ إِلَّا هُوَ ۚ كُلُّ شَىْءٍ هَالِكٌ إِلَّا وَجْهَهُۥ ۚ لَهُ ٱلْحُكْمُ وَإِلَيْهِ تُرْجَعُونَ

And do not invoke with Allāh another deity. There is no deity except Him. Everything will be destroyed except His Face. His is the judgement, and to Him you will be returned.

وَأَنَّ ٱلْمَسَـٰجِدَ لِلَّهِ فَلَا تَدْعُوا۟ مَعَ ٱللَّهِ أَحَدًا

And [He revealed] that the masjids are for Allāh, so do not invoke with Allāh anyone.