Narrated by the Shaykh (Al-Mufid), may Allah سبحانه وتعالى support him, from Abu al-Qasim Ja'far ibn Muhammad, from Muhammad ibn Ya'qub, from Muhammad ibn Isma'il, from al-Fadl ibn Shadhan, from Safwan ibn Yahya, from Mansur ibn Hazim, from Ibn Abi Ya'fur, and from Anbasah ibn Mus'ab, from Abu Abdullah عليه السلام, who said: Imam عليه السلام said: "If you come to a well while in a state of janabah and do not find a bucket or anything to draw water with, then perform tayammum with pure earth. Verily, the Lord عز وجل of water and the Lord عز وجل of earth is One. Do not immerse yourself into the well and spoil the water for the people."