23 Preface وَإِن كُنتُم في رَيبٍ مِمّا نَزَّلنا عَلىٰ عَبدِنا فَأتوا بِسورَةٍ مِن مِثلِهِ وَادعوا شُهَداءَكُم مِن دونِ اللَّهِ إِن كُنتُم صادِقينَAli Quli QaraiAnd if you are in doubt concerning what We have sent down to Our servant, then bring a sūrah like it, and invoke your helpers besides Allah, should you be truthful.