Hashim ibn Abd al-Manaf (Arabic: هاشم بن عبد مناف) (died ca. 497) was the great-grandfather of the Islamic prophet Muhammad and Ali ibn Abi Talib (the first Shia Imam & fourth Sunni Caliph). He also was the originator of the Banu Hashim clan of the distinguished Quraish tribe in Mecca. (From Wikipedia, the free encyclopedia)