﴿ كُتِبَ عَلَيْهِ أَنَّهُۥ مَن تَوَلَّاهُ فَأَنَّهُۥ يُضِلُّهُۥ وَيَهْدِيهِ إِلَىٰ عَذَابِ ٱلسَّعِيرِ ﴾

“about which it has been decreed that whoever entrusts himself to it, him will it lead astray and guide towards the suffering of the blazing flame!”

about whom it has been decreed in other words it has been decreed with regards to a devil that whoever takes him for a friend that is whoever follows him he will make him go astray and will lead him summon him to the chastisement of the Blaze namely to the Fire.