A sale whereby both parties express trust in each other. Examples: bai‘ al-wafa, bai‘al-talji’ah, bai‘ al-wadiyah, murabahah, etc.
Al-’amin al-khass
Zakah al-’ard
Bait al-mal
Al-jizyah
Rabb al-mal
Riba al-nasi'ah
Mudarib Udarib Principle
Ma al-shurb
Tujjar Musafirin
Mubah al-’asl