8. My father رحمه الله said: it was narrated to us by Ali b. Ibrahim from his father from Ahmad ibn Abi Nasr who said: Some of our companions asked Abu al-Hasan al-Rida عليه السلام about the one who visits the grave of al-Husayn عليه السلام. He said: ‘It is equivalent to a Hajj and an Umrah.’”