﴿ وَنَسُوقُ ٱلْمُجْرِمِينَ إِلَىٰ جَهَنَّمَ وِرْدًۭا ﴾

“and drive those who were lost in sin unto hell as a thirsty herd is driven to a well –”

and drive the guilty guilty on account of their disbelief into Hell a thirsty herd wirdan the accusative plural of wārid meaning ‘one who is thirsty and on foot.