Surah Al-Kahf — Ayah 83 (18:83)
وَيَسۡـَٔلُونَكَ عَن ذِي ٱلۡقَرۡنَيۡنِۖ قُلۡ سَأَتۡلُواْ عَلَيۡكُم مِّنۡهُ ذِكۡرًا ٨٣
English translation (Saheeh International)
And they ask you, [O Muḥammad], about Dhul-Qarnayn. Say, "I will recite to you about him a report."
Brief commentary
And the idolaters and Jews ask you to test you, O Messenger, regarding the one who had two horns (Dhu’l-Qarnayn). Say: I shall tell you some of his story which you can take lessons from and be reminded by.