وَ قَدْ رَوَى مُحَمَّدُ بْنُ أَبِي عُمَيْرٍ عَنْ دَاوُدَ بْنِ زُرْبِيٍّ قَالَ: قُلْتُ لِأَبِي اَلْحَسَنِ عَلَيْهِ اَلسَّلاَمُ إِنِّي أُعَامِلُ قَوْماً فَرُبَّمَا أَرْسَلُوا إِلَيَّ فَأَخَذُوا مِنِّي اَلْجَارِيَةَ وَ اَلدَّابَّةَ فَذَهَبُوا بِهَا مِنِّي ثُمَّ يَدُورُ لَهُمُ اَلْمَالُ عِنْدِي فَآخُذُ مِنْهُ بِقَدْرِ مَا أَخَذُوا مِنِّي فَقَالَ "خُذْ مِنْهُمْ بِقَدْرِ مَا أَخَذُوا مِنْكَ وَ لاَ تَزِدْ عَلَيْهِ".
Muhammad ibn Abi Umayr narrated from Dawud ibn Zurbi who said: I said to Abu Al-Hasan (a.s), "I deal with some people, and sometimes they send to me and take a bondwoman or an animal from me, and they take it away. Then their wealth later comes into my possession. Can I take from it an amount equivalent to what they took from me?" Imam (a.s) said: "Take from them an amount equal to what they took from you and do not take more than that."