I went to the bookstore of Waziri with the purpose of purchasing the commentary of Ziyarat Ashura. There I met Shaykh Ali Akbar Saidi, who was the Imam of Shah Tahmasab Mosque.
When I revealed the purpose of my visit. He then proceeded to relate an incident to me.
A Zoarastrian lady had converted to Islam. She then married Abul Qasim, who was a glass merchant. They were married approximately for three years but did not have any children. They decided that they would both recite Ziyarat Ashura for forty days, and seek their demands from Imam Husayn (a.s.).
So for forty days they recited Ziyarat Ashura with 100 Salams and curses, along with Dua Alqamah. Allah accepted this Ziyarat from the two, with the intercession of Imam Husayn (a.s.). Soon the lady gave birth to a son. And this son is alive till this day in Yazd, along with his family and children, i.e. until 1420 A.H.
Miracles of Ziyarat e Ashura – P.E.T Publications