Unseen realms

وَمِنَ ٱلشَّيَـٰطِينِ مَن يَغُوصُونَ لَهُۥ وَيَعْمَلُونَ عَمَلًا دُونَ ذَٰلِكَ ۖ وَكُنَّا لَهُمْ حَـٰفِظِينَ

And of the devils [i.e., jinn] were those who dived for him and did work other than that. And We were of them a guardian.

قَالَ عِفْرِيتٌ مِّنَ ٱلْجِنِّ أَنَا۠ ءَاتِيكَ بِهِۦ قَبْلَ أَن تَقُومَ مِن مَّقَامِكَ ۖ وَإِنِّى عَلَيْهِ لَقَوِىٌّ أَمِينٌ

A powerful one from among the jinn said, "I will bring it to you before you rise from your place, and indeed, I am for this [task] strong and trustworthy."