The Holy Imam al-Jawad was the symbol of 's affability and...
The Holy Imam al-Jawad was the symbol of 's affability and Imam `Ali's attainments. His hereditary qualities comprised of gallantry, boldness, charity, learning, forgiveness and tolerance.
The brightest and most outstanding phases of his nature and character were to show hospitality and courtesy to all without discrimination, to help the needy; to observe equality under all circumstances, to live a simple life; to help the orphans, the poor and the homeless; to impart learning to those interested in the acquisition of knowledge and guide the people to the right path.
Migration to Iraq: For the consolidation of his empire, it was realized by al-Ma'mun, the `Abbasid king, that it was necessary to win the sympathy and support of the Iranians who had always been friendly to the Ahlu'l-bayt. Consequently, al-Ma'mun was forced, from a political point of view, to establish contacts with the tribe of Banu Fatimah at the expense of the ties with Banu Abbas and thereby win the favour of the Shi'ah.
Accordingly, he declared Imam `Ali ar-Rida as his heir even against the Imam's will and got his sister Umm Habibah married to him. al-Ma'mun expected that Imam Ali ar-Rida would lend him his support in political affairs of the State. But when he discovered that the Imam was little interested in political matters and that the masses were more and more submitting themselves to him due to his spiritual greatness, he got him poisoned.
Yet the exigency which directed him to nominate Imam `Ali ar-Rida as his heir and successor still continued. Hence he desired to marry his daughter Ummu'l-Fadl to Muhammad al-Jawad, the son of Imam `Ali ar-Rida and with this object in view, he summoned the Imam from Medina to Iraq. The Banu `Abbas were extremely disconcerted when they came to know that al-Ma'mun was planning to marry his daughter to Imam Muhammad al-Jawad.
A delegation of some leading persons waited on him in order to dissuade him from his intention. But al-Ma'mun continued to admire the learning and excellence of the Imam. He would say that though Imam Muhammad al-Jawad was still young, yet he was a true successor to his father in all his virtues and that the profoundest scholars of the Islamic world could not compete with him.
When the Abbasids noticed that al-Ma'mun attributed the Imam's superiority to his learning they chose Yahya ibn Aktham, the greatest scholar and jurist of Baghdad, to contend with him.