Lit: One-fifth. Tech: It has come to be known as one-fifth share of the state from the booty. In the early days of Islam, it used to be one of the major sources of public revenue.
Al-yamin al-ghamus
Al-jarib
Al-shuhh
Al-mazalim al-mushtaraka
Al-dhimmi
Al-ajir al-khas
Al-bai‘ al-batil
Al-darb fil ard
Al-thamaniyah
Al-qusarah