Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi)
Bukhari :: Book 5 :: Volume 59 :: Hadith 389
Narrated 'Ali: I have never heard the Prophet mentioning his father and mother for anybody other than Sad bin Malik. I heard him saying on the day of Uhud, "O Sad throw (arrows)! Let my father and mother be sacrificed for you !"