﴿ 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."”

The literal meaning of ‘Dhu’l Qarnayn’ is ‘possessor of two horns’ i.e. the king whose conquests encompass the further reaches of the world to the east and west. Here, Dhu’l Qarnayn is perhaps a reference to the ancient Iranian King Cyrus, or Khusro, who reigned during the 5th century B.C. He had conquered a major part of the known world of ancient times and was at last killed in a war. He was a just king.