Selling by counterpoising gold for gold or dirhams for dirhams.
Bai‘ al-fuduli
Al-masarif al-thamaniyah
Al-ma‘lufah
Al-ma’un
Al-kis al-wahid
Al-mahmul
Al-tijarah al-hadirah
Al-mal al-kathir
Al-ghanimah
Diwan al-sawafi