He succeeded his father Sa'd al-Dawla in 991, but throughout his reign real power rested in the hands of Sa'd al-Dawla's former chamberlain, Lu'lu', to whose daughter Sa'id was wed. His reign was dominated by the Fatimid Caliphate's repeated attempts to conquer Aleppo, which was prevented only by the intervention of the Byzantine Empire. Warfare lasted until 1000, when a peace treaty was concluded guaranteeing Aleppo's continued existence as a buffer state between the two powers.