﴿ وَمِنَ ٱلشَّيَٰطِينِ مَن يَغُوصُونَ لَهُۥ وَيَعْمَلُونَ عَمَلًۭا دُونَ ذَٰلِكَ ۖ وَكُنَّا لَهُمْ حَٰفِظِينَ ﴾

“And among the rebel­lious forces [which We made subservient to him] there were some that dived for him [into the sea] and performed other works, besides: but it was We who kept watch over them.”

And We disposed of the devils some that dived for him plunging into the sea and bringing out of it jewels for Solomon and performed tasks other than that that is other than diving such as building and otherwise. And We were watchful over them lest they should spoil what they had made for whenever they completed a task before nightfall they would invariably spoil it unless they were occupied with some other task.