أَمۡ يَقُولُونَ ٱفۡتَرَىٰهُۖ قُلۡ فَأۡتُواْ بِسُورَةٖ مِّثۡلِهِۦ وَٱدۡعُواْ مَنِ ٱسۡتَطَعۡتُم مِّن دُونِ ٱللَّهِ إِن كُنتُمۡ صَٰدِقِينَ
If they say: ‘He invented it himself,‘ say: ‘Bring one sūrah like it. Call on whom you will besides God to help you, if what you say be true!‘
Author: N J Dawood