فَلْيَأْتُوا۟ بِحَدِيثٍ مِّثْلِهِۦٓ إِن كَانُوا۟ صَـٰدِقِينَ
Falyatoo bi h adeethin mithlihi in k a noo sa diqeena But then, [if they deem it the work of a mere mortal,] let them produce another discourse like it - if what they say be true!
 - Mohammad Asad
Let them produce a scripture like this, if what they say is true!
 - Muhammad Farooq-i-Azam Malik
Let them then produce something like it, if what they say is true!1
 - Mustafa Khattab
Then let them produce speech the like thereof, if they are truthful:
 - Marmaduke Pickthall
Let them then produce a recital like unto it if (it be) they speak the Truth!
 - Abdullah Yusuf Ali