Lit: A written commitment. Tech: IOU, a credit document. It is also known as al-suftajah.
Al-qaf'iz
Al-musadarah
Al-kis al-wahid
Al-musaqah
Al-daniq
Al-ajr al-mithl
Al-shuhh
Al-makilat
Al-sadaqah al-jariah
Al-mal al-batin