﴿ وَيَسْـَٔلُونَكَ عَن ذِى ٱلْقَرْنَيْنِ ۖ قُلْ سَأَتْلُوا۟ عَلَيْكُم مِّنْهُ ذِكْرًا ﴾

“AND THEY will ask thee about the Two-Horned One. Say: "I will convey unto you something by which he ought to be remembered."”

(They) the people of Mecca (will ask thee) O Muhammad (of Dhu'l-Qarnayn) about the event of Dhu'l-Qarnayn. (Say) to them, O Muhammad: (I shall recite unto you a remembrance of him) I shall recite to you an explanation of his event.