Sunan At-Tirmidhi

Ibn Abbas narrated that :the Messenger of Allah said: ""There are no days in which righteous deeds are more beloved to Allah than those ten days."" They said: ""O Messenger of Allah! Not even Jihad in Allah Cause?"" The Messenger of Allah said: ""Not even Jihad in Allah's Cause, unless a man were to out with his self and his wealth and not return from that with anything