Ahmad b. al-Hasan al-Qattan narrated to us. He said: Al-Hasan b. `Ali al-Sikri narrated to us. He said: Muhammad b. Zakariyya informed us. He said: Ahmad b. `Isa narrated to us from his uncle Muhammad b. `Abdullah b. al-Hasan from Zayd b. `Ali . He said:

Whoever comes to the grave of al-Husayn , recognizing his right, Allah will forgive his past and future sins.