8. My father and Muḥammad ibn Ḥasan both narrated to me from Ḥusain ibn Ḥasan ibn Abān, from Ḥusain ibn Sa’īd, from Faďālah ibn Ayyūb, from Yūsuf Al-Kunāsi, who said: Abū ‘Abdillāh (Imam Sādiq ) said: When you go to the grave of Ḥusain , go to the part of the Euphrates (River) closest to his grave and perform Ghusl with its water.