Abu Dawud Book 8, Hadith Number 2591.Abu Dawud Book 8. Jihad Chapter : Not known. Narated By A man who heard the Prophet : Al-Muhallab ibn AbuSufrah said: A man who heard the Prophet (PBUH) say: If the enemy attacks you at night, let your war cry be Ha-Mim. They will not be helped. Related Previous Post Abu Dawud Book 8, Hadith Number 2592. Next Post Abu Dawud Book 8, Hadith Number 2588.