The first day of the month of Dhu Al-Qi'dah in the year 173 AH, was the blessed day of the birth of the flourishing bud of the blessed prophetic tree, Lady Fatima daughter of Imam Musa al-Kadhem son of Imam Ja'far as-Sadeq (peace be upon them all) known as "al-Ma'soomah [the Infallible]", and the house of the revelation and the message bloomed with the birth of this new born which was named by her grandfather as-Sadeq (peace be upon him) by "Karimat [the noble one] Ahl Al-Bayt (peace be upon them)."
Lady al-Ma'soomah (peace be upon her) was brought up in a very noble family. She was the daughter of the Holy Imam Musa al-Kadhem, the sister of the Holy Imam Ali ar-Reda, and the aunt of the Holy Imam Mohammed Al-Jawad (peace be upon them all). She was taught all the Islamic sciences by her father and brother (peace be upon them) and she transmitted Ahadith (narrations) from them. She became famous as 'Aalimah (the Learned Lady) and Muhaddithah (the Learned Lady who transmitted Ahadith), she (peace be upon her) was most pious, noble and reverend lady.
Because Harun al-Abbasi had put her father in prison since her birth, and had assassinated him by poison in 183 AH. Lady Al-Ma'soomah has grown up with her brothers and sisters under the auspices and care of her brother imam Ar-Reda (peace be upon him) who gave her the title of "Ma'soomah."
Imam Al-Jawad (peace be upon him) said: "Whoever performs the Ziyarat of my aunt [Fatima al-Ma'soomah (peace be upon her)] in Qom will enter paradise".
Imam as-Sadeq (peace be upon him) said: "Mecca is God's sanctuary, Medina is Prophet Muhammad's (Prayers and Allah's peace be upon him and his holy household), Kufa is Imam Ali's (peace be upon him), and Qom will be the sanctuary for one of my descendants; her name shall be Fatima. Whosoever visits her sanctuary will be rewarded a heavenly paradise." and "By the intercession of Fatima al-Ma'soomah (peace be upon her) all my Shias will enter the paradise".
Imam ar-Reda (peace be upon him) also said: "Her visitors shall be endowed with paradise" and "Whosoever visits the sanctuary of Fatimah, will be rewarded a heavenly paradise" and "Whoever performs the Ziyarat of Fatima al-Ma'soomah with the knowledge of her status will attain paradise".