Chapter on Debt and Loan
Man Lā Yaḥḍuruh al-Faqīh|Volume 3|Book 2|Chapter 2
وَ رَوَى عَلِيُّ بْنُ رِئَابٍ عَنْ سُلَيْمَانَ بْنِ خَالِدٍ قَالَ: سَأَلْتُ أَبَا عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ عَنْ رَجُلٍ وَقَعَ لِي عِنْدَهُ مَالٌ فَكَابَرَنِي عَلَيْهِ وَ حَلَفَ ثُمَّ وَقَعَ لَهُ عِنْدِي مَالٌ أَ فَآخُذُهُ مَكَانَ مَالِيَ اَلَّذِي أَخَذَهُ وَ أَحْلِفُ عَلَيْهِ كَمَا صَنَعَ هُوَ فَقَالَ "إِنْ خَانَكَ فَلاَ تَخُنْهُ وَ لاَ تَدْخُلْ فِيمَا عِبْتَهُ عَلَيْهِ".
Ali ibn Ri'ab narrated from Sulayman ibn Khalid who said: I asked Abu Abdillah عليه السلام about a man who owed me money but denied it and swore an oath. Then, some of his money came into my possession. Should I take it in place of what he took from me and swear an oath as he did? Imam عليه السلام said: "If he has betrayed you, do not betray him, and do not commit what you criticized him for."
- Ṣaḥīḥ al-Faqīh, p. 215