٧- أَبُو عَلِيٍّ الأشْعَرِيُّ عَنْ مُحَمَّدِ بْنِ عَبْدِ الْجَبَّارِ عَنْ عَلِيِّ بْنِ النُّعْمَانِ عَنْ يَعْقُوبَ بْنِ شُعَيْبٍ قَالَ سَأَلْتُ أَبَا عَبْدِ اللهِ (عَلَيْهِ السَّلام) عَنِ الرَّجُلِ يَكُونُ عَلَيْهِ جُلَّةٌ مِنْ بُسْرٍ فَيَأْخُذُ مِنْهُ جُلَّةً مِنْ رُطَبٍ وَهِيَ أَقَلُّ مِنْهَا قَالَ لا بَأْسَ قُلْتُ فَيَكُونُ لِي عَلَيْهِ جُلَّةٌ مِنْ بُسْرٍ فَ‏آخُذُ مِنْهُ جُلَّةً مِنْ تَمْرٍ وَهِيَ أَكْثَرُ مِنْهَا قَالَ لا بَأْسَ إِذَا كَانَ مَعْرُوفاً بَيْنَكُمَا. 
7. Abu Ali al-Ash’ariy has narrated from Muhammad ibn ‘Abd al-Jabbar from Ali ibn al-Nu’man from Ya’qub ibn Shu’ayb who has said the following: “This is concerning my question before abu ‘ Abd Allah , about the case of a man who owed a basket of dry dates and got back a basket of fresh dates which was less. He (the Imam) said, ‘It is not unlawful.’ I then asked, ‘What will happen if he owes to me a basket of dry dates and I take from him a basket of fresh dates which is more?’ He (the Imam) said, ‘It is not unlawful if it is a known practice between the two of you.’” 