وَأَمَّآ إِن كَانَ مِنَ ٱلْمُكَذِّبِينَ ٱلضَّآلِّينَ 
  Waamm a  in k a na mina almuka thth ibeena a l  dda lleen a      But if one happens to be of those who are wont to call the truth    a lie, and [thus] go astray,
   - Mohammad Asad
     
And if he is one of the mistaken rejecters,
   - Muhammad Farooq-i-Azam Malik
   But if such person is one of the misguided deniers,
   - Mustafa Khattab
     
But if he is of the rejecters, the erring,
   - Marmaduke Pickthall
   And if he be of those who treat (truth) as Falsehood who go wrong    5271
   - Abdullah Yusuf Ali