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-‘asabah
Al-sariqah
Sadaqah
Mudaraba
Uqiyah
Al-‘ushr
Al-tassuj
Al-‘amal
Al-jizyah
Hisbah