قُلْتُ لِأَبِي عَبْدِ اللَّهِ ع مَا تَقُولُ فِي رَجُلٍ اكْتَرَى دَابَّةً إِلَى مَكَانٍ مَعْلُومٍ فَجَاوَزَهُ قَالَ يُحْسَبُ لَهُ الْأَجْرُ بِقَدْرِ مَا جَاوَزَ وَ إِنْ عَطِبَ الْحِمَارُ فَهُوَ ضَامِنٌ.
“This is concerning my question before abu ‘ Abd Allah (a.s.), about the case of a man who hires a stumper to a certain place but he goes beyond such place. He (the Imam) said, ’He must pay for the extra distance; and if the donkey is destroyed, he is held responsible.’”