What was narrated by Ali ibn Ibrahim from his father from Ibn Abi Umayr from Abu Ayyub, who said: Muhammad ibn Muslim asked Abu Ja’far عليه السلام, peace be upon him, and I was listening, about the traveller; ‘if he considers staying for ten days.’ Imam عليه السلام said: “Then let him complete the prayer. But if he does not know how long he will stay, a day or more, then let him count thirty days, then complete (the prayer), even if he has already stayed one day or performed one prayer.” Then Muhammad ibn Muslim said to Imam عليه السلام: “It has reached me that you said five (days).” Imam عليه السلام said: “Yes, I did say that.” Abu Ayyub said: “So I asked: ‘May I be your ransom, could it be less than five days?’” Imam عليه السلام said: “No.”