Abu'l-Hasan Ahmad ibn Muhammad ibn Abdallah ibn al-Mudabbir
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Abu’l-Ḥasan Aḥmad ibn Muḥammad ibn ʿAbdallāh ibn al-Mudabbir (Arabic: أبو الحسن أحمد بن محمد بن عبدالله بن المدبّر) commonly simply known as Ibn al-Mudabbir, was a senior courtier and fiscal administrator for the Abbasid Caliphate, serving in the central government, in Syria and Egypt. He is best known for his unsuccessful power struggle for control of Egypt against Ahmad ibn Tulun in 868–871.