One of the things that pilgrims must accomplish while in Kazmayn is to perform the Ziarat of Janabe Salman Farsi (r.a.) at Madaayan. He was one of the four most important companions of the Holy Prophet (s.a.w.a.) and the prophet told about him that:
Salman is from us, Ahle Bayt (a.s.).
سَلْمَانُ بَحْرٌ لَا یُنْزَفُ وَ كَنْزٌ لَا یَنْفَدُ سَلْمَانُ مِنَّا اَهْلَ الْبَیْتِ یُمْنَحُ الْحِكْمَۃَ یُؤْتَیٰ الْبُرْهَانَ۔
اَدْرَكَ سَلْمَانُ الْعِلْمَ الْاَوَّلَ وَ الْعِلْمَ الآْخِرَ وَ هُوَ بَحْرٌ لَا یُنْزَحُ وَ هُوَ مِنَّا اَهْلَ الْبَیْتِ۔
Salmaan has reached to the first and the last of knowledge and he is that ocean which does not dry and he is from us Ahle Bait (a.s.).
This much is sufficient to encourage the pilgrims for his Ziarat. He was of the foremost of the companions is proved by the fact that when he passed away, Ali (a.s.) traveled from Medina to Madaayan and performed his last rites with his own hands and offered the funeral prayers along with rows of angels. Then he returned to Medina the same night. What can be said about love and devotion towards Ahle Bayt (a.s.) that it elevated a man to such a level.