Hazrat Fatima bint Musa al Kazim (A.S) was most pious, noble and reverend lady. Like her holy grandmother Hazrat Fatima Zahra (S.A) she was always busy in performing Salaat (prayers) and kept fast most of the days. She was greatly respected and revered by her holy father Imam Musa al Kazim (A.S) and her elder brother Imam Reza (A.S). She becomes famous as Masoumeh (the Immaculate) during her lifetime. Imam Reza (A.S) has said about Hazrat Fatima Masoumeh (S.A) "Whoever performs the Ziyarah of 'Fatima Masoumeh' in Qum is like the person who has performed my Ziyarah".
In the year 200 A.H. a year after the forced migration of Imam Reza (A.S) from Medina to Marw in Khorasan by the reigning Abbasid caliph Mamun, Hazrat Masoumeh accompanied by her brothers left Medina for Khorasan to meet her elder brother Imam Reza (A.S). When they reached Saveh in central Iran they were attacked by the Abbasid army and many of his brothers were mercilessly martyred. A lady servant on the orders of the Abbasid commander poisoned Hazrat Masoumeh (S.A) during her stay in Saveh.
Hazrat Masoumeh (S.A) became severely ill and in this condition she migrated to Qum where the Shias of the city warmly welcomed her. The effect of poisoning increased during her short stay in Qum and she attained martyrdom on 10th of Rabi al Thani 201 A.H. Hazrat Masoumeh (S.A) had great longing to meet her brother Imam Reza (A.S) but due to her sudden death she could not meet him. Imam Reza (A.S) was deeply grieved when he came to know about the demise of her beloved sister Hazrat Fatima Masoumeh (S.A).
The Merits of the Ziyarah of Hazrat Fatima Masoumeh (S.A)
There are many traditions from the Holy Imams (A.S) recommending the Shias to perform the Ziyarah of the holy grave of Hazrat Masoumeh (S.A) in the holy city of Qum.
Imam Ali Reza (A.S) said: "Whoever performs the Ziyarah of Fatima Masoumeh (S.A) will be awarded heaven". Also: "Whoever performs the Ziyarah of 'Fatima Masoumeh' with the knowledge of her status will attain paradise".
Imam Muhammad Taqi al Jawad (A.S) said: "Whoever performs the Ziyarah of my aunt [Fatima Masoumeh (S.A)] in Qum will enter paradise".
Imam Khomeini had always sought the holy mausoleum of Masomah Fatime (‘a) holy shrine in the holy city of Qom as a center of divine blessings.
When Imam used to teach at seminaries in Qom, at the time of Adhaan before dawn, he would go to the Haraam of Hazrat Masuomeh (as) and in the mosque of Balaa Sar, he would say his prayers behind Agha Mirza Jawadi Aqaamalaqi.
Imam Khomeini also said in a series of statements that the holy shrine of Imam Reza (‘a) in holy city of Mashhad and Masoumah’s mausoleum in Qom had been center of great devotion from believers and were source of divine blessings and pride for the Iranian nation.