Chapter on Description of Tayammum, Its Rules for Those in a State of Impurity, and What They Should Observe About Istibra and Istizhar

And with this chain of narration, from al-Husayn ibn Sa'id, from Hammad, from Hariz, from Zurara, from Abu Ja'far عليه السلام, who said: I asked Imam عليه السلام: "How is Tayammum (dry ablution)?" Imam عليه السلام said: "It is a single strike for Wudu' (ablution) and Ghusl (ritual bath) for Janabah (major ritual impurity). You strike your hands twice, then shake them off -once for the face and once for the hands. And whenever you find water, you must perform Ghusl if you were in a state of Janabah, and Wudu' if you were not."