And from him, from Ibn Ziyad, from Zurarah and others, from Abu Ja’far عليه السلام, who said: He عليه السلام was asked about a man who prayed without ‘taharah’ (ritual purity), or who forgot prayers and did not perform them, or who slept through them. Imam عليه السلام said: "He should perform them whenever he remembers them, at whatever hour he remembers, whether night or day."