An office set up by early ‘Abbasids (AD 750–945) to act as agent for collection of all revenues and taxes from the agricultural lands of Iraq.
Bai‘ al-’ist’iman
Dhira al-ammah
Two-tier ’istisna‘
Qabd
Commenda
Benevolent Bonds
Hibah bil iwad
Riba al-nasi'ah
Tahsiniyat
Hukm