﴿ إِنَّا جَعَلْنَا فِىٓ أَعْنَٰقِهِمْ أَغْلَٰلًۭا فَهِىَ إِلَى ٱلْأَذْقَانِ فَهُم مُّقْمَحُونَ ﴾

“Behold, around their necks We have put shack­les, reaching up to their chins, so that their heads are forced up;”

Indeed We have put fetters around their necks to bind to them their hands because ghull is a fetter that shackles the hands to the neck such that they the hands are bound up to the chins adhqān is the plural of dhaqan which is where the two sides of the beard meet so that their heads are upturned they are unable to lower them this statement is figurative and is meant to indicate their inability to yield to faith or to lower their heads to it.