It is narrated from Sayyiduna Ibn Mas'ud (may Allah be pleased with him) that once the Prophet (peace and blessings be upon him) faced the Ka'bah and invoked curses by name upon seven men of the Quraysh, among whom were Abu Jahl, Umayyah bin Khalaf, Utbah bin Rabi'ah, Shaybah bin Rabi'ah, and 'Uqbah bin Abi Mu'ayt. I swear by Allah that I saw all of them killed at the Battle of Badr, and they were dragged and thrown into a well. Since it was the hot season, their bodies had decomposed due to the heat of the sun.