Ayyub Faleh al-Rubaie, known by his nom de guerre Abu Azrael (Arabic: ابو عزرائيل‎, literally "Father of Azrael"), also known as the "Angel of Death", is a commander of the Kataib al-Imam Ali, an Iraqi Shi'a militia group of the Popular Mobilization Forces that is fighting ISIL (Islamic State of Iraq and the Levant) in Iraq.