الكافي- ط الاسلامية, volume 5, page 376

3. A number of our people have narrated from Sahl ibn Ziyad from Ahmad ibn Muhammad from ibn abu Nasr from Dawud ibn al- Husayn from abu al-‘Abbas who has said the following: “This is concerning my question before abu ‘Abd Allah (a.s.), about mahr (dower); if there is an appointed time to pay it. He (the Imam) said, ‘No, there is no particular time for it.’ He (the Imam) then said, ‘The amount of mahr (dower) the Messenger of Allah paid was twelve Awqiyah and one Nashsha. One al-Nashsha is equal to one-half of al-Awqiyah and al-Awqiyah is equal to forty dirham and it was five hundred dirham.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

4. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from ibn Faddal from ibn Bukayr from ‘Ubayd ibn Zurarah who has said the following: “I once heard abu ‘Abd Allah (a.s.), saying, ‘The amount of mahr (dower) the Messenger of Allah, O Allah, grant compensation to Muhammad and his family worthy of their services to Your cause, paid to his wives was twelve Awqiyah and one Nashsha. Al-Awqiyah is equal to forty dirham and one al-Nashsha is equal to one-half of al-Awqiyah which is twenty dirham.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

5. Ali ibn Ibrahim has narrated from his father from Hammad ibn ‘Isa from Abu ‘Abdillah (a.s.) who said: "My father said, ‘The Messenger of Allah (SW) did not give in marriage any of his daughters or marry any of his wives for a mahr (dower) of more than twelve Uqiyyahs and one Nashsh. An Uqiyyah is equal to forty dirhams and a Nashsh is equal to twenty dirhams.’"

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

6. And Hammad has narrated from Ibrahim ibn abu Yahya who has said the following: “Abu ‘Abd Allah (a.s.), has said, ‘The weight of dirham in those days was six.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

7. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from ibn abu Nasr from al-Husayn ibn Khalid and Ali ibn Ibrahim has narrated from his father from ibn abu ‘Umayr from ‘Uthman al-Khazzaz from a man from al-Husayn ibn Khalid who has said the following: “I once asked abu al-Hassan, ‘Alayhi al-Salam, about mahr (dower) according to Sunnah and how it has become five hundred. He (the Imam) said, ‘Allah, most Blessed, most High, has made obligatory upon Himself that if any believing person says one hundred times Takbir (Allah is great beyond description), one hundred times, Tasbih (Allah is free of all defects), one hundred times, Tahmid, (all praise belongs to Allah), one hundred times, Tahlil, (no one deserves worship except Allah) one hundred times and one hundred times, O Allah, grant compensation to Muhammad and his family worthy of their services to Your cause, and then says, ‘O Allah pair me up with Hur al-‘In .’ Allah pairs him up with a Hawra’ al-‘In and makes this (things he has said) as mahr (dower). Then Allah, most Majestic, most Glorious, sent revelation to His Holy prophet, O Allah, grant compensation to Muhammad and his family worthy of their services to Your cause, to set mahr (dower) for the believing women at five hundred dirham. The Messenger of Allah followed the instruction and if any believing man proposes marriage to his brother in belief for his graceful daughter with five hundred dirham as mahr (dower) and he does not agree, he has caused a suspension and he will not deserve from Allah, most Majestic, most Glorious, to pair him with Hur al-‘In.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.