And Allah -azwj Gave him from all things...

And Allah -azwj Gave him from all things, knowledge by which he recognised the truth and the falsehood, and Aided him in his generation by an eclipse from the sky wherein was darkness, and thunder and lightning.

ثم اهبط إلى الأرض، و أوحى الله إليه: أن سر في ناحية غرب الأرض و شرقها، و قد طويت لك البلاد، و ذللت لك العباد، و أرهبتهم منك Then He -azwj Sent him down to the earth and Revealed unto him: “Travel in the areas of the west of the earth and its east, and the cities have been folded up for you (brought closer), and the servants have been Made humbled to you, and to be awed from you!” فسار ذو القرنين إلى ناحية المغرب، فكان إذا مر بقرية زأر فيها كما يزأر الأسد المغضب، فينبعث من قرنيه ظلمات و رعد و برق، و صواعق تهلك من ناوأه و خالفه، فلم يبلغ مغرب الشمس حتى دان له أهل المشرق و المغرب Zulqarnayn travelled to the areas of the west, and it so happened that whenever he passed by a town, he visited therein just as the angry lion would visit it.

So, from one of his horns emitted the darkness, and the thunder, and lightning, and thunderbolts destroying the ones around it and behind it. He did not reach the west of the sun until the people of the east and the west professed (Religion) to him’.