Sahih Bukhari Volume 005, Book 059, Hadith Number 401.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 59. Military Expeditions Led by the Prophet (PBUH) (Al-Maghaazi)
Narrated By Ibn 'Abbas : Allah's Wrath became severe on him whom the Prophet had killed in Allah's Cause. Allah's Wrath became severe on the people who caused the face of Allah's Prophet to bleed.