39th Ayah from Surah Al Anbiya
Sahih International
If those who disbelieved but knew the time when they will not avert the Fire from their faces or from their backs and they will not be aided...
Abdul Haleem
If the disbelievers only knew, the time will arrive when they will not be able to ward off the Fire from their faces or their backs, and they will get no help.
Mohsin Khan/Hilali
If only those who disbelieved knew (the time) when they will not be able to ward off the Fire from their faces, nor from their backs; and they will not be helped.
Taqi Usmani
Only if the disbelievers were to know the time when they will not (be able to) keep off the fire from their faces or from their backs, nor will they be helped.
Pickthall
If those who disbelieved but knew the time when they will not be able to drive off the fire from their faces and from their backs, and they will not be helped!
Pickthall
If only the Unbelievers knew (the time) when they will not be able to ward off the fire from their faces, nor yet from their backs, and (when) no help can reach them!