Yet another type are the traveling Angels who seek gatherings of dhikr. It is related that Abū Hurayra radīallahu `anhu said that the Messenger of Allah sallallāhu `alayhi wasallam said: Allah Almighty has Angels who roam about seeking the people of dhikr. When they find a group doing dhikr of Allah, they call to one another, ‘Come to that which you have been seeking!'
The Angels of Dhikr
Shaykh `Abdul Hamid Kishk