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.
Bait al-mal
Al-safiyah
Al-muslam ‘ilaih
Al-tajir al-muqim
Al-mustaghallat
Jagir
Al-itawah
Al-dain al-da'if
Al-birr
Tawkil al-’istiqrad