وَ رَوَى مَنْصُورُ بْنُ يُونُسَ عَنْ مُحَمَّدٍ اَلْحَلَبِيِّ قَالَ: كُنْتُ قَاعِداً عِنْدَ قَاضٍ وَ عِنْدَهُ أَبُو جَعْفَرٍ عَلَيْهِ اَلسَّلاَمُ جَالِسٌ فَأَتَاهُ رَجُلاَنِ فَقَالَ أَحَدُهُمَا إِنِّي تَكَارَيْتُ إِبِلَ هَذَا اَلرَّجُلِ لِيَحْمِلَ لِي مَتَاعاً إِلَى بَعْضِ اَلْمَعَادِنِ فَاشْتَرَطْتُ أَنْ يُدْخِلَنِي اَلْمَعْدِنَ يَوْمَ كَذَا وَ كَذَا لِأَنَّ بِهَا سُوقاً أَتَخَوَّفُ أَنْ يَفُوتَنِي فَإِنِ اُحْتُبِسْتُ عَنْ ذَلِكَ حَطَطْتُ مِنَ اَلْكِرَاءِ عَنْ كُلِّ يَوْمٍ اِحْتَبَسْتُهُ كَذَا وَ كَذَا وَ إِنَّهُ حَبَسَنِي عَنْ ذَلِكَ اَلْوَقْتِ كَذَا وَ كَذَا يَوْماً فَقَالَ اَلْقَاضِي هَذَا شَرْطٌ فَاسِدٌ وَفِّهِ كِرَاهُ فَلَمَّا قَامَ اَلرَّجُلُ أَقْبَلَ إِلَيَّ أَبُو جَعْفَرٍ عَلَيْهِ اَلسَّلاَمُ وَ قَالَ "شَرْطُهُ هَذَا جَائِزٌ مَا لَمْ يَحُطَّ بِجَمِيعِ كِرَاهُ".
Mansur ibn Yunus narrated from Muhammad al-Halabi: I was sitting with a judge, and Abu Jafar Imam Muhammad ibn Ali Al-Baqir (a.s) was also present. Two men approached the judge. One of them said: "I hired this man's camels to transport my goods to a certain mine. I stipulated that he must get me there on a specific day because there is a market there, and I feared missing it. I also stipulated that if I was delayed, I would deduct a specific amount from the fare for each day of the delay. However, he delayed me for several days beyond the agreed time." The judge said: "This condition is invalid. Pay him his full fare." When the man left, Abu Jafar Imam Muhammad ibn Ali Al-Baqir (a.s) turned to me and said: "His condition is valid as long as he does not deduct the entire fare."