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‘ bil nasi’ah
Bay` bi-thaman ajil
Takaful
Infaq
Hikr
Bai‘ al-dain bil dain
Daman al-naqs
Irsad
Bai‘ al-muhaqalah
Bai al-wafa'