عَنْ أَبِي صَالِحٍ قَالَ سَمِعْتُ أَبَا سَعِيدٍ رَضِيَ اللَّهُ عَنْهُ يَقُولُ الذَّهَبُ بِالذَّهَبِ وَزْنًا بِوَزْنٍ قَالَ فَلَقِيتُ ابْنَ عَبَّاسٍ رَضِيَ اللَّهُ عَنْهُمَا فَقُلْتُ أَرَأَيْتَ مَا تَقُولُ أَشَيْئًا وَجَدْتَهُ فِي كِتَابِ اللَّهِ أَوْ سَمِعْتَهُ مِنْ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ قَالَ لَيْسَ بِشَيْءٍ وَجَدْتُهُ فِي كِتَابِ اللَّهِ أَوْ سَمِعْتُهُ مِنْ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ وَلَكِنْ أَخْبَرَنِي أُسَامَةُ بْنُ زَيْدٍ رَضِيَ اللَّهُ عَنْهُ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ قَالَ الرِّبَا فِي النَّسِيئَةِ
Abu Salih says: When I heard Abu Saeed saying that gold for gold should be equal, I met Sayyiduna Ibn Abbas (may Allah be pleased with them both) and said to him: What is your opinion about what you say, have you found this thing in the Noble Qur'an or heard it from the Messenger of Allah (peace and blessings be upon him)? He said: This is not something that I have found in the Book of Allah or heard from the Messenger of Allah (peace and blessings be upon him), rather Sayyiduna Usamah bin Zaid (may Allah be pleased with them both) informed me that the Messenger of Allah (peace and blessings be upon him) said that usury is in credit.