Allaah the Most High said:أَءِلَـٰهٌ مَّعَ ٱللَّهِ‌ قُلۡ هَاتُواْ بُرۡهَـٰنَكُمۡ إِن كُنتُمۡ…

Allaah the Most High said:

أَءِلَـٰهٌ مَّعَ ٱللَّهِ‌ قُلۡ هَاتُواْ بُرۡهَـٰنَكُمۡ إِن كُنتُمۡ صَـٰدِقِينَ

Is there any ilāh (god) with Allaah? Say: “Bring forth your proofs, if you are truthful.”

{Sūrah An-Naml 27:64}