Al-Kahf

So we intended that their Lord should substitute for them one better than him in purity and nearer to mercy.

And as for the wall, it belonged to two orphan boys in the city, and there was beneath it a treasure for them, and their father had been righteous. So your Lord intended that they reach maturity and extract their treasure, as a mercy from your Lord. And I did it not of my own accord. That is the interpretation of that about which you could not have patience."

And they ask you, [O Muḥammad], about Dhul-Qarnayn. Say, "I will recite to you about him a report."

Indeed, We established him upon the earth, and We gave him from everything a way [i.e., means].

So he followed a way

Until, when he reached the setting of the sun [i.e., the west], he found it [as if] setting in a body of dark water, and he found near it a people. We [i.e., Allāh] said, "O Dhul-Qarnayn, either you punish [them] or else adopt among them [a way of] goodness."

He said, "As for one who wrongs, we will punish him. Then he will be returned to his Lord, and He will punish him with a terrible punishment [i.e., Hellfire].

But as for one who believes and does righteousness, he will have a reward of the best [i.e., Paradise], and we [i.e., Dhul-Qarnayn] will speak to him from our command with ease."

Then he followed a way

Until, when he came to the rising of the sun [i.e., the east], he found it rising on a people for whom We had not made against it any shield.