Ibn `Umar (raDiyallahu `anhu) reported that the Prophet ﷺ said: "When you pass by the gardens of Paradise, avail yourselves of them." The Companions asked: "What are the gardens of Paradise, O Messenger of Allah ﷺ?" He replied: "The circles of dhikr. There are roaming angels of Allah who go about looking for the circles of dhikr, and when they find them they surround them closely."
Tirmidhi narrated it (hasan gharib) and Ahmad.
Sh. Nabeel Afzal