O Muhammad, they ask you about Zul-Qarnain. Say “I will recite to you some of his story”.
Meaning:-
Zul-Qarnain: This is the story of a righteous king who travelled far and wide. He is titled Ⱬul-Qarnain (lit., the man of the two horns) because of his journeys to the far east and far west (or the two horns/points of sunrise and sunset). Some believe Ⱬul-Qarnain was Alexander the Great, but this is not sound since Alexander the Great was a polytheist. Many scholars believe it was Abu Kuraib Al-Ḥamiri, a righteous king from Yemen.