A contract of sale that is lawful in its substance and description. The substance of an agreement refers to proposal, acceptance and the article of sale (mabi‘).
Al-sabr
Al-mukhammin
Al-tana‘um
Al-muhtasib
Al-mazalim al-mushtaraka
Al-taswigh
Al-tabarru‘
Al-madi
Al-qaf'iz
Al-suhbah