Al-Kāfi

11. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from Muhammad ibn Yahya from Ghiyath ibn Ibrahim who has said the following: “About the case of a man who marries a woman for a mahr (dower) payable immediately and a part of it on credit, abu ‘Abd Allah (a.s.), has said, ‘The due date for payment of what is on credit of mahr (dower) is on their separation or death.’”