Jami` at-Tirmidhi 3378

Al-Agharr Abu Muslim narrated that:He bears witness, from Abu Hurairah and Abu Sa’eed Al-Khudri, that they bear witness, from the Messenger of Allah, that he said: “There is no group that remembers Allah, except that the angels encompass them, mercy covers them, and tranquility descends upon them: and Allah remembers (mentions) them before those who are with Him.”