Compulsory charity such as zakah, sadaqah al-fitr, etc. It also includes penal charity for such sins as breaking of oath, breaking of fast, etc.
Al-bai‘ bil raqam
Profit-Sharing Certificates
Two-window model
Muwakkil
Al-mustaghallat
Qimar
Al-sabr
Al-mukhadarah
Al-ghana
Zakatable assets