Allah's Prophet and the Angel of Death

Allah's Prophet^{(SalAllahu alaih Wasallam)} once saw the Angel of Death by the bedside of an Ansari Companion, and asked him to be gentle with his Companion. The Angel of Death replied, "Please be at ease. I deal gently with every believer". He further said, "I see five times in a day each and every person living in the cities, villages, forests, mountains or along the rivers. So, I know all their whole lineage directly". He then said, "O Muhammad^{(SalAllahu alaih Wasallam)}, all of this happens because Allah has so Decreed. Otherwise, I don’t have the power to collect the soul of even a mosquito, unless Allah's Decree arrives about it".