And We have set none but angels as Guardians of the Fire; and We have fixed their number only as a trial for Unbelievers,- in order that the People of the Book may arrive at certainty, and the Believers may increase in Faith,- and that no doubts may be left for the People of the Book and the Believers, and that those in whose hearts is a disease and the Unbelievers may say, "What symbol doth Allah intend by this?" Thus doth Allah leave to stray whom He pleaseth, and guide whom He pleaseth: and none can know the forces of thy Lord, except He and this is no other than a warning to mankind.

我只将管理火狱的成天神，我只以他们的数目，考验不信道的人们，以便曾受天经的人们认清，而信道的人们更加笃信；以免曾受天经的人们和信道的人们怀疑；以便心中有病者和不信道者说：“真主设这个譬喻做什么？”真主这样使他所意欲的人误入迷途，使他所意欲的人遵循正路。只有你的主，能知道他的军队，这只是人类的教训。