Musannaf Ibn Abi Shayba 33:812

Abdullah ibn Numayr narrated to us, from Musa ibn Salim, from Awn ibn Abdullah, from his father or from his brother, from al-Nu’man ibn Bashir, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Those who remember Allah through His glorification (tasbih), His praise (tahmid), His magnification (takbir), and His declaration of oneness (tahlil), they hover around the Throne. They have a buzzing sound like the buzzing of bees, mentioning their companion. Would one of you not like to always have something with the Most Merciful by which he is remembered?"