Allah says to His Prophet jg,

4And they ask you} O Muhammad jg,

iabout Dhul-Qarnayn.} i.e., about his story. We have already mentioned how the disbelievers of Makkah sent word to the People of the Book and asked them for some information with which they could test the Prophet *g. They (the People of he Book) said, ‘Ask him about a man who traveled extensively throughout the earth, and about some young men who nobody knows what they did, and about the Ruh (the soul),’ then Surat Al-Kahf was revealed.

Dhul-Qarnayn had great Power

iVerily, We established him in the earth,} means, “We have him great power, so that he had all that kings could have might, armies, war equipment and siege machinery.’ So he dominion over the east and the west, all countries and kings submitted to him, and all the nations, Arab and n Arab, served him. Some of them said he was called Dh Qarnayn (the one with two horns) because he reached the “Homs" of the sun, east and west, where it rises and where it sets.

iand We gave him the means of everything.}

Ibn ‘Abbas, Mujahid, Said bin Jubayr, ‘Ikrimah, As-Suddi, Qatadah, Ad-Dahhak and others said, “This means knowledge.” 111 Qatadah also said,

iand We gave him the means of everything .}

“The different parts and features of the earth.” 121 Concerning Bilqls, Allah said,

ishe has been given all things } [27:23], meaning all things that monarchs like her are given. Thus too was Dhul-Qamayn: Allah gave him the means of all things, meaning the means and power to conquer all areas, regions and countries, to defeat enemies, suppress the kings of the earth and humiliate the people of Shirk. He was given all that a man like him would need. And Allah knows best.