Narrated Abu Huraira (Radi-Allahu 'anhu): The Prophet (Sallallahu 'Alaihi Wa Sallam) said, "The one who looks after a widow or a poor person is like a Mujahid (warrior) who fights for Allah's Cause, or like him who performs prayers all the night and fasts all the day." [bukhari Vol 7 No 265]