3- عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ ابْنِ أَبِي نَجْرَانَ عَنْ عَاصِمِ بْنِ حُمَيْدٍ عَنْ مُحَمَّدِ بْنِ قَيْسٍ عَنْ أَبِي جَعْفَرٍ (عَلَيْهِ السَّلام) قَالَ قَالَ أَمِيرُ الْمُؤْمِنِينَ (صَلَّى اللهُ عَلَيْهِ وَآلِه) مَنِ اتَّجَرَ مَالا وَاشْتَرَطَ نِصْفَ الرِّبْحِ فَلَيْسَ عَلَيْهِ ضَمَانٌ وَقَالَ مَنْ ضَمَّنَ تَاجِراً فَلَيْسَ لَهُ إِلا رَأْسُ مَالِهِ وَلَيْسَ لَهُ مِنَ الرِّبْحِ شَيْءٌ.
3. Ali ibn Ibrahim has narrated from his father from ibn abu Najran from ‘Asim ibn Humayd from Muhammad ibn Qays who has said the following: “Abu Ja’far 
, has said that ’Amir al-Mu’minin has said, ’If one uses a certain amount of assets in business with stipulation for half of the profit, he is not liable.’ He (the Imam) also said, ‘One who holds a merchant responsible he can only have his capital and has no share in the profit.’”
