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.
Jahiliyyah
Musharakah Mutanaqisah
ACC (Arab Cooperation Council)
Al-qana‘ah
Shirkah al-’amwal
Amanah
Wasiyyah
Fiqh al-mu'amalat
Al-rushd
Al-batil