2. Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from Hafs ibn al-Bakhtariy who has said the following
“Abu ‘Abd Allah (a.s.), has said, ‘If something of mahr (dower) remains due on him and he learns that she has a husband, then what she has received belongs to her because of its making his going to bed with her lawful and he can withhold the remaining of mahr (dower).”’