ভূমিকা
Shiavault - a Vault of Shia Islamic Books the Life of Imām 'ali Bin Mūsā Al-ridā Chapter Iv UNDER THE CARE OF HIS FATHER Imām al-Ridā, peace be on him, lived under the wing of his father, Imām Mūsā al-Kāzim, peace be on him, for twenty five years and some months.
He witnessed various kinds of ordeal and misfortune which befell his father, who worried and frightened the Abbāsid government, for he was the focus of the attention of the Muslims and the place of their hope for saving them from the ruling Abbāsid band, who went too far in wronging the people and forcing them (to do) what they disliked.
In addition to this is that great part of the Muslims adopted the Imāmate of Imām al-Kāzim, for they regarded him as the lawful successor after the Messenger, may Allah bless him and his Household, and worthier of his office and position than Hārūn (al-Rashid) and the rest of the Abbāsid kings, with whom the Imām coincided. The high rank of Imām al-Kāzim made the Abbāsid kings sleepless, so they harbored malice against him, took all measures to persecute and torture him.
Any how, I (the author) will mention a brief outline about the personality of Imām al-Kāzim and its good effects on that of Imām al-Ridā, peace be on him. Imām al-Kāzim, peace be on him, is famous in the world for his outstanding qualities, through the fact that there were gathered in his noble character all the elements of virtue, fundamentals of wisdom and morals, of which are the following: A.
His Scientific Talents Without doubt Imām Mūsā al-Kāzim, peace be on him, was the most learned of the people of his time and most knowledgeable of them in all sciences. He was the highest authority in the science of Islamic jurisprudence and tradition. So the religious scholars and the narrators surrounded him in order to record his religious edicts, his wonderful wise sayings and morals.
Imām al-Sādiq, the most eminent figure of this community and pioneer of its renaissance, bore witness to the abundant knowledge of his son when he said to Īsā: If you ask this son of mine (Imām Mūsā) about what is between the two sides of the Qurān, he will answer you about it with knowledge.
[1] He has also said concerning his sons outstanding merit: He (Imām al-Kāzim) has knowledge of wisdom, understanding, munificence, and knowledge of what the people need regarding their religious affairs over which they differ.