One of the contemoprary speakers (most likely Sheikh Mahdi Tehrani) narrates an encounter with Imam Mahdi, based on an account by a scholar from Mazandaran. This scholar had a habit of reciting a prayer for the hastening of the Faraj of Imam Mahdi, every time he went for the Ziyarat to the Imam Reza Shrine.
Habit of praying for Imam Mahdi
The details of the story according to the aforementioned speaker are as follows (with some editing): We had a scholar in Mashhad, who passed away. He was originally from Mazandaran. He was telling this story in the 60s (Solar Hijri). He was saying that forty years ago (probably abound 80-90 years ago), when I decided to come to Mashhad–to reside by Imam Reza–I decided to visit Imam Reza every day. And each time I reach the “Balasar” (Above-the-head) location in the Shrine, I turned to Qibla, raised my hands and said a word of prayer for Imam Mahdi. I was saying:
اَللَّهُمَّ أَرِنا [أَرِنِي] اَلطَّلْعَةَ اَلرَّشِيدَةَ
I just said this sentence. I had gotten used to this. It had gotten to the point where I did this, involuntarily, every time I went to Imam Reza Shrine.
Forty years of prayer
He said that after forty years of this, something that has gotten very routine to me, one night, when I got to Balasar in the Shrine of Imam Reza, when I went to raise my hands and say my prayer for the Faraj of Imam Mahdi, I felt a hand tap my shoulder. As soon as he tapped my shoulder, I wanted to turn back, but I couldn’t. I heard the voice, though. He said:
So and so! We appreciate that you think of us, even as much as this.
The expression اَللَّهُمَّ أَرِنِي اَلطَّلْعَةَ اَلرَّشِيدَةَ appears in the Du’a al-Ahad.