Volume 9, Book 93, Number 550:
Narrated Abu Musa:
A man came to the Prophet and said, “A man fights for pride and haughtiness another fights for
bravery, and another fights for showing off; which of these (cases) is in Allah’s Cause?” The Prophet
said, “The one who fights that Allah’s Word (Islam) should be superior, fights in Allah’s Cause.” (See
Hadith No. 65, Vol. 4)