Hanzala Ibn Abi Amir or Ḥanẓala Ibn Abī ʿĀmir (Arabic: ﺣﻨﻈﻠـة ﺍﺑﻦ ﺍﺑﻲ ﻋﺎﻣﺮ) was one of companions of the Islamic prophet Muhammad (Peace be upon him).  He belonged to the Banu Aus tribe of the Ansar. His father, Abu Aamir was a Christian. Hanzala's age was just 24 years when he was martyred in the the Battle of Uhud while fighting against the polytheists.  Hanzala being a foot soldier, assaulted the mount of Abu Sufyan ibn Harb to attack him. However, the latter was saved by Shaddād bin al-Aswad (also known as Ibn Sha'ub) who also killed Hanzala.
Hanzala had earlier left for the battlefield to respond the call of Jihad leaving his wife Jamila, daughter of Abd-Allah ibn Ubayy, on the first wedding night. He did not have the time for doing Ghusl (ablution). Prophet Muhammad is narrated to have seen angels giving Hanzala a bath in between heavens and the earth with fresh rainwater kept in silver vessels. Because of this honor, Hanzala earned the title of Ghaseel al-Malāʾika (Arabic: غسيل الملائكة) or the one cleansed by the angels. His son, Abdullāh ibn Hanzala would later command the people of Medina to dissent against the Umayyad Caliph Yazid I.