Al-Muddaththir 74:31 وما جعلنا اصحاب النار الا ملايكة وما جعلنا عدتهم الا فتنة للذين كفروا ليستيقن الذين اوتوا الكتاب ويزداد الذين امنوا ايمانا ولا يرتاب الذين اوتوا الكتاب والمومنون وليقول الذين في قلوبهم مرض والكافرون ماذا اراد الله بهاذا مثلا كذالك يضل الله من يشاء ويهدي من يشاء وما يعلم جنود ربك الا هو وما هي الا ذكرى للبشر ٣١

And We have not made the keepers of the Fire except angels. And We have not made their number except as a trial for those who disbelieve - that those who were given the Scripture will be convinced and those who have believed will increase in faith and those who were given the Scripture and the believers will not doubt and that those in whose hearts is disease [i.e., hypocrisy] and the disbelievers will say, "What does Allāh intend by this as an example?" Thus does Allāh send astray whom He wills and guide whom He wills. And none knows the soldiers of your Lord except Him. And it [i.e., mention of the Fire] is not but a reminder to humanity.