I heard Abu Jafar Imam Muhammad ibn Ali Al-Baqir (as) say: "I was once with a judge in Medina when two men approached him. One of them said: 'I hired this man's animal to take me from such-and-such place to such-and-such place, but it did not reach the destination.' The judge asked the owner of the animal, 'Did you take him to the place he hired you for?' He replied: 'No, my animal became exhausted and could not complete the journey.' The judge then said to the owner of the animal, 'You are not entitled to any fare since you did not deliver him to the destination he hired your animal for.'" Abu Jafar Imam Muhammad ibn Ali Al-Baqir (as) said: "I called both of them to me and said to the hirer, 'You are not entitled to take back all the fare you paid for the animal.' And I said to the owner, 'You are not entitled to take the full fare for your animal.' Instead, I told them, 'Consider how much of the journey remains and how much of it has been completed. Then come to a mutual agreement about the fare based on that.' So they did as I instructed and settled the matter."