Narrated by the Shaykh (Al-Mufid), may Allah سبحانه وتعالى support him, from Ahmad ibn Muhammad, from his father, from Sa'd ibn Abdullah, from Ahmad ibn Muhammad, from al-Husayn ibn Sa'id, from al-Nadr, from Asim ibn Humayd, from Abu Basir and Muhammad ibn Muslim, from Abu Ja'far عليه السلام, that they both heard him say: Imam عليه السلام said: "The Messenger of Allah سبحانه وتعالى (peace be upon him and his family) used to perform ghusl with a sa‘ of water and perform wudu with a mudd of water."