2. Ali ibn Ibrahim has narrated from his father from ibn abu ‘Umayr from Hafs ibn al-Bakhtariy who has said the following: “Abu ‘Abd Allah, ‘Alayhi al-Salam, 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).”’

3. Ali ibn Ibrahim has narrated from Salih ibn al-Sindiy from Ja’far ibn Bashir from ‘Umar ibn Aban from ‘Umar ibn Hanzalah who has said the following: “I once said to abu ‘Abd Allah, ‘Alayhi al-Salam, ‘I marry a woman for one month and withhold a certain amount from her mahr (dower). He (the Imam) said, ‘Yes, you can do so for what is equal to her violation of the condition. If the violation is half of the month you can withhold one-half, if it is one-third then withhold one-third.’ Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from Ali ibn al-Hakam from ‘Umar ibn Hanzalah from abu ‘Abd Allah, ‘Alayhi al-Salam, has narrated a similar Hadith.”

4. Ali ibn Ibrahim has narrated from his father from ibn abu ‘Umayr from Ishaq ibn ‘Ammar who has said the following: “About the case of a man who marries a woman in the manner of al-Mut‘ah (advantageous marriage) with the condition that she must come to him every day to comply with the condition, or sets a condition to come to him in certain days; but she asks to be excused and does not come to comply with the condition; if it is proper for him to deduct for the days that she did not come and withhold from her mahr (dower) accordingly. To this question from me abu al-Hassan, ‘Alayhi al-Salam, said, ‘Yes, he can consider how much she has violated, then withhold proportionate to what she has not complied, except the days of her Hayd (menses); they are for her and he cannot have what is not lawful for him in matters of going to bed with her.’”