Say, "Have you considered1 your 'partners' whom you invoke besides Allāh? Show me what they have created from the earth, or have they partnership [with Him] in the heavens? Or have We given them a book so they are [standing] on evidence therefrom? [No], rather, the wrongdoers do not promise each other except delusion."2
Translation: Saheeh International (English)
1 Understood to mean "Tell me about..."
2 By telling their followers that the so-called deities will intercede for them with Allāh.
Say - O Messenger, to these idolaters: Tell me about those partners of yours that you worship instead of Allah, what have they created on earth. Did they create its mountains? Did they create its rivers? Did they create its animals? Or do they have any share with Allah in the creation of the heavens? Or have I given them a book in which there is proof of the validity of their worshipping their idols? Nothing of that is true. In fact, those who wrong themselves by disbelief and sins promise one another nothing but delusion.