إِنَّ الَّذينَ تَدعونَ مِن دونِ اللَّهِ عِبادٌ أَمثالُكُم ۖ فَادعوهُم فَليَستَجيبوا لَكُم إِن كُنتُم صادِقينَ

Indeed, those you [polytheists] call upon besides Allah are servants like you. So call upon them and let them respond to you, if you should be truthful.