Tafseer Ibn Kathir of AL ANBIYAA' [82]

وَمِنَ الشَّيَاطِينِ مَن يَغُوصُونَ لَهُ وَيَعْمَلُونَ عَمَلًا دُونَ ذَلِكَ وَكُنَّا لَهُمْ حَافِظِينَ

And of the devils were those who dived for him and did work other than that. And We were of them a guardian.