Sahl ibn Ziyad narrated from Ahmad ibn Muhammad ibn Abi Nasr, from Fudayl Sukkarah, who said: I said to Abu Abdullah عليه السلام: "May I be your ransom, is there a specific amount of water required for washing (of the deceased)?" Imam عليه السلام said: "Indeed, the Messenger of Allah سبحانه وتعالى, said to (Imam) Ali عليه السلام: 'When I die, bring six water skins filled with water from the well of Ghars, and wash me and shroud me. After you have completed my washing and shrouding, then take hold of the edges of my shroud, sit me up, and ask me whatever you wish. By Allah سبحانه وتعالى, you will not ask me about anything except that I will answer you regarding it.'"