Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) said: On the day of Badr I came upon Abu Jahl while he lay struck down, and I struck him with a blunt sword I had. His sword fell from his hand, so I picked it up and killed him. Then, on a hot day, I came to the Prophet (peace and blessings be upon him) as though my feet were lifted off the ground, and said: "O Messenger of Allah, do you not see that Allah has killed Abu Jahl?" He (peace and blessings be upon him) said: "By Allah?" I said: "By Allah," until he (peace and blessings be upon him) made me swear three times. Then the Prophet (peace and blessings be upon him) said: "Go and show him to me." So I went to him, and when he (peace and blessings be upon him) looked at him, he said: "This was the Pharaoh of this Ummah."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 8443