Sa’ad ibn Abdullah, from Imran ibn Musa, from Muhammad ibn al-Husayn, from Abdullah ibn Jabalah, from Ishaq ibn Ammar, who said: I (narrator) said to Abu Abdillah عليه السلام, peace be upon him: “A fasting man deliberately immersed himself in water; is making up that day upon him?” Imam عليه السلام said: “Making it up is not upon him, but he must certainly not return to doing it.”