Sahih Bukhari
Sahih Bukhari Volume 004, Book 052, Hadith Number 052.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 52. Fighting for the Cause of Allah (Jihaad)
Narated By Sahl bin Sad : The Prophet said, "A single endeavor in Allah's Cause in the afternoon and in the forenoon is better than the world and whatever is in it."