“
Seventy thousand angels worship near the grave of Imām Husayn (a). The prayer (salah) of one of them, is equal to a thousand prayers of mankind. The reward of this prayer is for the visitors of Imām Husayn's (a) grave. The curse of God, His angels and all mankind is forever upon the killers of Imām Husayn (a).
— JA'FAR AL-SADIQ