In ‘Abbasid Iraq (AD 750–945), an official of the tax department who worked for the jahbadh.
Al-khiyanah
Amanah
Al-bai‘ al-mutlaq
Al-qana‘ah
Shirkah al-‘inan
Bai‘ al-‘ariyah
Al-‘ushr
Hagbad
Al-mata
Al-mashiyah