Exchange of dirhams and dinars by measuring their quantities rather than by counting.
Bai al-wad iyah
Bai‘ al-juzaf
Bay` bi-thaman ajil
Bai al-sinin
Diwan al-kharaj
Bai‘ mutajjarah
Bai‘ al-mudtar
Bai‘ al-khiyar
Bai‘ al-salaf
Bai al-thimar