In the house of Imam Kadhim (A.S.), Najma, the wife of the honorable Imam was eagerly looking forward to the arrival of the child; she was counting days and nights for that day. The Imam's house was overwhelmed with happiness.
Finally, the day arrived, on the 1st of Dhil-Qa'dah 173 (A.H.) when Allah blessed the 7th Imam Musa Kadhim (A.S.) with a daughter. The child's appearance was brilliant and cheerful and she opened her pure bright eyes to this world in the house of Imam.
All the members of the Holy Household were in utter happiness for the newborn and after the Imam, may be there was not anybody as happy as his wife Najma. This was because this was the second child that was granted by the grace of Allah to Najma after 25years. 25years ago, in the same month of Dhil-Qa'dah, Najma had given birth to a baby boy who after his father was to become the Imam and was to shoulder the responsibility of Imamate and guiding the Muslims.
Yes! That was 148 (A.H.), when the eight Imam, Ali (A.S.) was born and who was given the title of Ridha. Najma got immense pleasure in her first child and after years God blessed her and her husband Musa Kadhim (A.S.) with a daughter and a sister to Imam Ridha (A.S.).
Imam Musa Kadhim (A.S.) named his daughter Fatimah, for the sake of love and special attachment he had with his grandmother Fatimah Zahra (S.A.). Fatimah's purity, modesty, and piety were such that after sometime she was referred as "Ma'soomah" (the infallible). This was because like her honorable Father, she used to keep away from all evils and sins.
Fatemah, was a name that was remembered among the Ahlul bayt who had hundreds of sad and sweet memories of the life of Bibi Fatimah (S.A)
If anybody chose the name Fatimah for their daughters, they used to give the same respect as the prophet (S.A.W.) used to give his daughter. She was never neglected. Imam Musa Kadhim (A.S.) also followed this tradition and used to love the new girl very much and never failed to show and express his kindness to and love for her.
Fatimah Ma'soomah was growing under the shelter of her father and dear mother and was day by day learning new things from both of them. If the father of Fatemah was the Imam of the Muslims and was matchless in his piety and chastity, then her mother was also pious and faithful who had accomplished her essential studies of Islam in the school of the wife of Imam Ja'far Sadiq (A.S.). In those days she was the most intelligent amongst all women and it was for reason that the mother of Imam Kadhim (Hamideh) asked him to propose and marry her.
Hazrat Fatimah Ma'soomah took advantage of studying in the presence of her father, brother and pious mother. All her young life was full of Islamic education. Every Friday Muslims would come to Medina with their religious questions. After getting their questions answered by Imam Kadhim (A.S.), they would return to their town. Incidentally, once Imam Kadhim was away and Imam Ridha (A.S.) was also not around. The Muslims without getting their question answered were returning home very sad.
Fatimah Ma'soomah noticed the sadness and took the papers from them and answered their questions. The Muslims became happy and left. On the outskirts of Medina they met Imam Kadhim (A.S.) and they informed him of all that had transpired in his house. The Imam asked to read his daughter's answers and after reading expressed his happiness, praised her and in a short sentence said, "May her father be sacrificed for her."