This is none other than the archangel Michael, who will bind the Devil and hurl him ​ — and evidently the demons — ​ into the abyss.
وَبَعْدَئِذٍ ،‏ سَيَهْلِكُ ٱلشَّيْطَانُ وَسَائِرُ ٱلْمُتَمَرِّدِينَ ٱلَّذِينَ يُؤَيِّدُونَهُ .‏