Chapter on Pledging (Rahn)
Man Lā Yaḥḍuruh al-Faqīh|Volume 3|Book 2|Chapter 35
وَ رَوَى أَبُو اَلْحُسَيْنِ مُحَمَّدُ بْنُ جَعْفَرٍ اَلْأَسَدِيُّ رَضِيَ اَللَّهُ عَنْهُ عَنْ مُوسَى بْنِ عِمْرَانَ اَلنَّخَعِيِّ عَنْ عَمِّهِ اَلْحُسَيْنِ بْنِ يَزِيدَ اَلنَّوْفَلِيِّ عَنْ عَلِيِّ بْنِ سَالِمٍ عَنْ أَبِيهِ قَالَ: سَأَلْتُ أَبَا عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ عَنِ اَلْخَبَرِ اَلَّذِي رُوِيَ "أَنَّ مَنْ كَانَ بِالرَّهْنِ أَوْثَقَ مِنْهُ بِأَخِيهِ اَلْمُؤْمِنِ فَأَنَا مِنْهُ بَرِيءٌ" فَقَالَ "ذَلِكَ إِذَا ظَهَرَ اَلْحَقُّ وَ قَامَ قَائِمُنَا أَهْلَ اَلْبَيْتِ " قُلْتُ فَالْخَبَرُ اَلَّذِي رُوِيَ "أَنَّ رِبْحَ اَلْمُؤْمِنِ عَلَى اَلْمُؤْمِنِ رِبًا مَا هُوَ" قَالَ "ذَاكَ إِذَا ظَهَرَ اَلْحَقُّ وَ قَامَ قَائِمُنَا أَهْلَ اَلْبَيْتِ وَ أَمَّا اَلْيَوْمَ فَلاَ بَأْسَ بِأَنْ يَبِيعَ مِنَ اَلْأَخِ اَلْمُؤْمِنِ وَ يَرْبَحَ عَلَيْهِ".
Abu al-Husayn Muhammad ibn Ja'far al-Asadi (may Allah سبحانه وتعالى be pleased with him) narrated from Musa ibn Imran al-Nakha'i, from his uncle al-Husayn ibn Yazid al-Nawfali, from Ali ibn Salim, from his father, who said: "I asked Abu Abdullah عليه السلام about the report that has been narrated: 'Whoever relies more on a pledge (rahn) than on his believing brother, I am free from him.' Imam عليه السلام replied: 'That applies when the truth becomes manifest, and our Qaim (the Mahdi Imam Muhammad ibn Hassan Al-Mahdi عليه السلام) from among the Ahlulbayt عليه السلام rises.' I then asked about the report that says: 'The profit earned by a believer from another believer is riba (usury).' Imam عليه السلام said: 'That applies when the truth becomes manifest, and our Qaim عليه السلام from among the Ahlulbayt عليه السلام rises. As for today, there is no harm if a believer sells to his believing brother and earns profit from him.' "
- Ṣaḥīḥ al-Faqīh, p. 254