قَالَ: لَا يُبَاعُ مَخْتُومَانِ مِنْ شَعِيرٍ بِمَخْتُومٍ مِنْ حِنْطَةٍ وَ لَا يُبَاعُ إِلَّا مِثْلًا بِمِثْلٍ وَ التَّمْرُ مِثْلُ ذَلِكَ قَالَ وَ سُئِلَ عَنِ الرَّجُلِ يَشْتَرِي الْحِنْطَةَ فَلَا يَجِدُ عِنْدَ صَاحِبِهَا إِلَّا شَعِيراً أَ يَصْلُحُ لَهُ أَنْ يَأْخُذَ اثْنَيْنِ بِوَاحِدٍ قَالَ لَا إِنَّمَا أَصْلُهُمَا وَاحِدٌ وَ كَانَ عَلِيٌّ ع يَعُدُّ الشَّعِيرَ بِالْحِنْطَةِ.
“Abu ‘Abd Allah (a.s.), has said, ‘It is not permissible to sell two Makhtum (a container) of barley for one Makhtum of wheat. These items cannot be exchanged except in equal quantities of each other and so also is the date.’ Abu ‘Abd Allah (a.s.), was asked about the case of a man who buys wheat but cannot find with h