١- عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ سَهْلِ بْنِ زِيَادٍ وَأَحْمَدَ بْنِ مُحَمَّدٍ عَنِ ابْنِ مَحْبُوبٍ عَنْ هِشَامِ بْنِ سَالِمٍ عَنْ أَبِي عَبْدِ اللهِ (عَلَيْهِ السَّلام) قَالَ سُئِلَ عَنِ الرَّجُلِ يَبِيعُ الرَّجُلَ الطَّعَامَ الأكْرَارَ فَلا يَكُونُ عِنْدَهُ مَا يُتِمُّ لَهُ مَا بَاعَهُ فَيَقُولُ لَهُ خُذْ مِنِّي مَكَانَ كُلِّ قَفِيزِ حِنْطَةٍ قَفِيزَيْنِ مِنْ شَعِيرٍ حَتَّى تَسْتَوْفِيَ مَا نَقَصَ مِنَ الْكَيْلِ قَالَ لا يَصْلُحُ لأنَّ أَصْلَ الشَّعِيرِ مِنَ الْحِنْطَةِ وَلَكِنْ يَرُدُّ عَلَيْهِ الدَّرَاهِمَ بِحِسَابِ مَا نَقَصَ مِنَ الْكَيْلِ.
1. A number of our people have narrated from Sahl ibn Ziyad and Ahmad ibn Muhammad from ibn Mahbub from Hisham ibn Salim who has said the following: “Once abu ‘ Abd Allah , was asked about the case of a man who sells foodstuff to another man in quantity of several kur but cannot deliver what he owes, and says to the other party to accept two Qafiz (a certain unit of measurement) of barley for one Qafiz of wheat to compensate for the deficit. He (the Imam) said, ‘It is not valid; the origin of barley is from wheat, however, he can return his dirhams proportionate to the degree of deficit.’” 