Surah Yunus Verse 38 - English Translation by Shabbir Ahmed
Surah Yunusأَمۡ يَقُولُونَ ٱفۡتَرَىٰهُۖ قُلۡ فَأۡتُواْ بِسُورَةٖ مِّثۡلِهِۦ وَٱدۡعُواْ مَنِ ٱسۡتَطَعۡتُم مِّن دُونِ ٱللَّهِ إِن كُنتُمۡ صَٰدِقِينَ
Or, do they say, "He has invented it?" Tell them, "Bring one Surah like this and call for help everyone you can besides Allah, if you are truthful." (2:23), (11:13). (One chapter like this in beauty, eloquence and wisdom. And "besides Allah" would mean, without copying phrases and sentences from the Qur'an)