Al-Kahf 18:86
حَتَّىٰ إِذَا بَلَغَ مَغْرِبَ الشَّمْسِ وَجَدَهَا تَغْرُبُ فِي عَيْنٍ حَمِئَةٍ وَوَجَدَ عِندَهَا قَوْمًا ۗ قُلْنَا يَا ذَا الْقَرْنَيْنِ إِمَّا أَن تُعَذِّبَ وَإِمَّا أَن تَتَّخِذَ فِيهِمْ حُسْنًا ٨٦
Hatta itha balagha maghriba alshshamsi wajadaha taghrubu fee AAaynin hamiatin wawajada AAindaha qawman qulna ya tha alqarnayni imma an tuAAaththiba waimma an tattakhitha feehim husnan
0:00
Until he reached the boundary of (a locality towards) the west where he perceived the setting of the sun as if going down into a spring of (muddy black) hot water, and he found a people (living) there. We said: ‘O Dhu al-Qarnayn, (it is up to you) whether you punish them or treat them nicely.’ (18:86)