Quran english al kahf 86

حتى إذا بلغ مغرب الشمس وجدها تغرب في عين حمئة ووجد عندها قوما قلنا يا ذا القرنين إما أن تعذب وإما أن تتخذ فيهم حسنا

Hatta itha balaghamaghriba ashshamsi wajadaha taghrubu fee AAaynin hami-atinwawajada AAindaha qawman qulna ya thaalqarnayni imma an tuAAaththiba wa-imma antattakhitha feehim husna

 
Sahih International
Until, when he reached the setting of the sun, he found it [as if] setting in a spring of dark mud, and he found near it a people. Allah said, “O Dhul-Qarnayn, either you punish [them] or else adopt among them [a way of] goodness.”
Muhsin Khan
Until, when he reached the setting place of the sun, he found it setting in a spring of black muddy (or hot) water. And he found near it a people. We (Allah) said (by inspiration): “O Dhul-Qarnain! Either you punish them, or treat them with kindness.”
Pickthall
Till, when he reached the setting-place of the sun, he found it setting in a muddy spring, and found a people thereabout. We said: O Dhu’l-Qarneyn! Either punish or show them kindness.
Yusuf Ali
Until, when he reached the setting of the sun, he found it set in a spring of murky water: Near it he found a People: We said: “O Zul-qarnain! (thou hast authority,) either to punish them, or to treat them with kindness.”
Shakir
Until when he reached the place where the sun set, he found it going down into a black sea, and found by it a people. We said: O Zulqarnain! either give them a chastisement or do them a benefit.
Dr. Ghali
Until, when he reached the setting of the sun, (The western part of the then known world) he found it setting in a muddy spring, and he found a people at it. We said, “O Thulqarnayn, either you will torment (them) or you will take to yourself towards them a fair (way).”