Muhammad Habib Shakir: But if you do (it) not and never shall you do (it), then be on your guard against the fire of which men and stones are the fuel; it is prepared for the unbelievers.
Abdullah Yusuf Ali: But if ye cannot- and of a surety ye cannot- then fear the Fire whose fuel is men and stones,- which is prepared for those who reject Faith.
M.Pickthall: And if ye do it not - and ye can never do it - then guard yourselves against the Fire prepared for disbelievers, whose fuel is of men and stones.
Amatul Rahmân Omer: But if you fail to do (so), and never shall you do (it), then guard against the Fire, the fuel of which will be human beings (who are deviating from the way of truth) and stones, (it is) prepared for the disbelievers.
Maulana Mohammad Ali: But if you do (it) not -- and you can never do (it) -- then be on your guard against the fire whose fuel is men and stones; it is prepared for the disbelievers.