3. Muḥammad ibn Ja’far narrated to me from Muḥammad ibn Ḥusain, from Muḥammad ibn Sinān, who said: I heard Imam Riďā عليه السلام say: Going to the Ziyārah of the grave of Ḥusain عليه السلام is equal to performing a purified and accepted ‘Umrah.