Surah Hud Verse 13 - English Translation by Ahmed Ali
Surah Hudأَمۡ يَقُولُونَ ٱفۡتَرَىٰهُۖ قُلۡ فَأۡتُواْ بِعَشۡرِ سُوَرٖ مِّثۡلِهِۦ مُفۡتَرَيَٰتٖ وَٱدۡعُواْ مَنِ ٱسۡتَطَعۡتُم مِّن دُونِ ٱللَّهِ إِن كُنتُمۡ صَٰدِقِينَ
Do they say (of the Prophet): "He has forged (the Qur'an)?" Say: "Then bring ten Surahs like it, and call anyone except God to help you, if what you say is true