My father narrated to us. He said: Sa`d b. `Abdullah narrated to us. He said: Ahmad b. Muhammad b. `Isa and Muhammad b. al-Husayn b. Abi’l Khattab narrated to us from Ahmad b. Muhammad b. Abi Nasr al-Bazanti. He said: I read in a letter of Abi’l Hasan al-Rida :

Announce to my Shi`a that a visitation of me is considered by Allah to be equal to one thousand Hajj. He said: I said to Abi Ja`far [al-Jawad] : One thousand Hajj? He said: Yes, by Allah. One million Hajj for one who visits him recognizing his right.