Central board for the management of personal estates of the caliph during the ‘Abbasid caliphate (AD 750–945).
Bai‘ al-mukhatarah
Al-tana‘um
Al-istighna
Qimar
Takhliyah
Orfi hukuk
Ra's al-mal
Bai‘ al-fuduli
Shirkah al-wujuh
Tas‘ir al-’ujrah