٩- عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ وَسَهْلِ بْنِ زِيَادٍ عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ أَبِي نَصْرٍ عَنْ حَمَّادِ بْنِ عُثْمَانَ عَنْ إِسْحَاقَ بْنِ عَمَّارٍ قَالَ سَأَلْتُ أَبَا إِبْرَاهِيمَ (عَلَيْهِ السَّلام) عَنِ الرَّجُلِ يَرْهَنُ الرَّهْنَ بِمِائَةِ دِرْهَمٍ وَهُوَ يُسَاوِي ثَلاثَمِائَةِ دِرْهَمٍ فَيَهْلِكُ أَعَلَى الرَّجُلِ أَنْ يَرُدَّ عَلَى صَاحِبِهِ مِائَتَيْ دِرْهَمٍ قَالَ نَعَمْ لأنَّهُ أَخَذَ رَهْناً فِيهِ فَضْلٌ وَضَيَّعَهُ قُلْتُ فَهَلَكَ نِصْفُ الرَّهْنِ قَالَ عَلَى حِسَابِ ذَلِكَ قُلْتُ فَيَتَرَادَّانِ الْفَضْلَ قَالَ نَعَمْ.
9. A number of our people have narrated from Ahmad ibn Muhammad from and Sahl ibn Ziyad from Ahmad ibn Muhammad from ibn abu Nasr from Hammad ibn ‘Uthman from Ishaq ibn ‘Ammar who has said the following: “I once asked abu Ibrahim, Alayhi al-Salam, about the case of a man who made an al-Rahn (security deposit and mortgage) deal which is for one hundred dirham with a value of three hundred dirham and it was consumed; if he had to pay two hundred dirham to the other party. He (the Imam) said, ‘Yes, because he has taken al-Rahn (security deposit) in which there is increase and loss.’ I then asked, ‘What happens if half is consumed?’ He (the Imam) said, ‘It is proportionate.’ I then asked, ‘Do they return to each other the extra?’ He (the Imam) said, ‘Yes, that it true.’” 