Shaykh Tusi writes in his Amali quoting his teachers that Muhammad Azdi said that: I was praying in the Jama Masjid of Madinah and sitting next to me were two men, one of whom was dressed like a traveller. He was saying: the turbah of Imam Husain (a.s.) has cure for all diseases. I was sick for a long time and no cure was effective. I was losing all hopes of recovering. Death was staring me in the face. An old lady of Kufa came to me when I was in extreme pain. She told me that day by day my condition was worsening. ‘Yes’, I said, ‘this is true’. She said if I permitted she can provide a cure for me. I agreed to it. She put some water in a vessel and told me to drink it. I drank it and was instantly cured, as if I had never been ill.
After a few months the lady visited me again. Her name was Salma. I put her under oath to tell me how she had cured me? She said that she had cured me with a bead of the tasbih she was holding in her hand at that time. I asked what was the speciality of that tasbih. She said it was made from the soil of the grave of Imam Husain (a.s.).
I said: O Rafidiyya!3 Did you cure me with the soil of the grave of Husain? The lady arose in anger and went away. My illness returned, and my condition was so serious that I was convinced of an early death.
The man’s faith should have been enhanced by this edifying incident. Instead he insulted it and lost the benefits he had gained from it. He suffered the disease again, becoming an example of the ayat,
“And We reveal of the Qur’an that which is a healing and a mercy to the believers, and it adds only to the perdition of the unjust.” (Surah al-‘Isrā’, 17: 82)