Hadith.445 - Hanzalah ibn Abu 'Amir, known as "the Rahib," was martyred at the Battle of Uhud.
The Prophet Muhammad (sw) did not command that he be washed, saying: "I saw the angels washing Hanzalah with water from the clouds, using silver vessels."
Because of this, he was given the title "Ghasil al-Malaika" (The One Washed by the Angels).