Fighting for the Cause of Allah (Jihaad)
Bukhari :: Book 4 :: Volume 52 :: Hadith 77
Narrated Anas bin Malik:
The Prophet used to say, "O Allah! I seek refuge with You from helplessness, laziness, cowardice and feeble old age; I seek refuge with You from afflictions of life and death and seek refuge with You from the punishment in the grave."