Hadith.4399 - When Imam Abu Ja'far Muhammad ibn Ali al-Ridha (as) married the daughter of al-Ma'mun, Imam (as) delivered the following sermon for himself: "All praise is due to Allah (swt), the Completer of blessings through His (swt) mercy, and the Guide to gratitude through His (swt) favor. May Allah (swt) send blessings upon Muhammad (sw), the best of His (swt) creation, in whom He (swt) gathered all virtues that He (swt) distributed among the previous messengers, and He (swt) entrusted his inheritance to those whom He (swt) chose for his succession. May Allah (swt) grant him peace and blessings in abundance. Here stands (your political ruler) Commander of Faithful, who has married me to his daughter in accordance with what Allah (swt), the Almighty and Glorious, has ordained for Muslim women over believing men, either to retain them honorably or to release them kindly. I have offered her as a dowry what the Messenger of Allah (swt) (peace and blessings be upon him and his family) offered to his wives, which is twelve uqiyyah and a nashsh (approximately 500 dirhams). And I have added to it, from my own wealth, one hundred thousand (dirhams). O' (political ruler) Commander of the Faithful, you have married her to me, have you not?" He (al-Ma'mun) replied: "Yes." Imam (as) said: "I accept, and I am satisfied."