“Once I saw al-Rida (a.s.) standing at the door of the firewood room and he was whispering but I would not see anyone else around. I then asked him, “My master, who are you talking to?” He said, “This is ‘Amir al-Zahra’i. He has come to ask a few questions and he has certain complains.” I then asked, “My master, I like to hear his words.” He said, “If you would hear his words you will have fever for one year.” I said, “My master, I like to hear him.” He said, “All right, then listen.” I listened and I heard something like a whistle. I then felt fever for one year.”