Rent of land, especially from fiefs (’iqta‘) donated to someone.
Ra’s al-mal al-salam
Diwan al-mustaghallat
D'a wa ta'ajjil
Net Equity Concept
Green Sukuk
Qard Hasan Certificates
Qibalatul ’ard
Bai‘ al-salaf
Ra's al-mal
Rabb al-’asl