Sūrah Hud · Hud11 : 13
أَمۡ یَقُولُونَ ٱفۡتَرَىٰهُۖ قُلۡ فَأۡتُوا۟ بِعَشۡرِ سُوَرࣲ مِّثۡلِهِۦ مُفۡتَرَیَـٰتࣲ وَٱدۡعُوا۟ مَنِ ٱسۡتَطَعۡتُم مِّن دُونِ ٱللَّهِ إِن كُنتُمۡ صَـٰدِقِینَ
“Or they say: He hath invented it. Say: Then bring ten surahs, the like thereof, invented, and call on everyone ye can beside Allah, if ye are truthful!”