23وَإِن كُنتُم في رَيبٍ مِمّا نَزَّلنا عَلىٰ عَبدِنا فَأتوا بِسورَةٍ مِن مِثلِهِ وَادعوا شُهَداءَكُم مِن دونِ اللَّهِ إِن كُنتُم صادِقينَMir AneesuddinAnd if you are in doubt concerning (the Quran) which We have sent down to Our servant, then bring a chapter like it and call your witnesses besides Allah, if you are truthful.