تفسير : (so (it was)) just as he reached the west, so did he reach the east. (and we knew all concerning him) we knew what he had of information and exposition.
Jalāl al-Dīn al-Maḥallī
تفسير : so [it was], in other words, the situation was as we have stated; and we encompassed whatever pertained to him, that is, what dhū’l-qarnayn possessed in the way of machinery, men and otherwise, in knowledge.