Muadh ibn Amr al-Ansari

Muadh ibn Amr ibn al-Jamuh al-Ansari (died after the Prophet's era) was a young Companion of the Prophet ﷺ from the Ansar who became famous as one of the two young men who killed Abu Jahl at the Battle of Badr. He was from the Banu Salama clan of the Khazraj tribe and was among the Ansar who had pledged their allegiance at Aqabah.

At the Battle of Badr in 2 AH, the young Muadh ibn Amr asked about Abu Jahl — the most powerful enemy of the Prophet ﷺ who had been one of the bitterest opponents of Islam in Mecca. He and another young man, Muawwidh ibn Afra, both struck Abu Jahl, each cutting off parts of him. When Abd Allah ibn Masud later came to finish Abu Jahl off, he found both young men had dealt him mortal blows.

When the Prophet ﷺ asked who had killed Abu Jahl, both Muadh and Muawwidh answered. The Prophet ﷺ looked at their swords and said both had killed him. He gave both the honor of having dispatched the "Pharaoh of this ummah" as he famously called Abu Jahl. Ibn Masud confirmed to the Prophet ﷺ that Abu Jahl had said at the moment of dying: "There is no greater achievement than being killed by one's own people."

Muadh ibn Amr survived the battle and lived on after it, continuing to narrate this account in detail. The story of the two young men's bravery in seeking out the greatest enemy of Islam became one of the most celebrated tales of Badr.