Muhammad ibn Yaqub from Muhammad ibn Yahya from Muhammad ibn al-Husayn from Safwan from al-Is ibn al-Qasim. He said: I asked Aba Abdillah عليه السلام, peace be upon him, about a man who was traveling and performed the prayer in full. Imam عليه السلام said: “If it is still within the time (of the prayer), then he should repeat it. But if the time has already passed, then no (he does not need to repeat it).”