Musnad Ahmad 11167

Beware! Beware! This is definitely usury! This is definitely usury! Do not do so, but if you want to buy (a superior kind of dates) sell the inferior dates for money, and then buy the superior kind of dates with that money

Abu Sa‘īd al-Khudri (may Allah be pleased with him) reported: Once Bilāl brought some Barni dates to the Prophet (may Allah's peace and blessings be upon him) who asked him, "Where did you get these dates?" Bilāl replied: "I had some inferior type of dates, and I exchanged two Sā‘s of it for one…

عَيْنُ الرِّبَا عَيْنُ الرِّبَا، لاَ تَفْعَلْ، وَلَكِنْ إِذَا أَرَدْتَ أَنْ تَشْتَرِيَ فَبِعِ التَّمْرَ بِبَيْعٍ آخَرَ ثُمَّ اشْتَرِهِ ‏"

Narrated by Abu Sa‘īd al-Khudri + 2 other versions Explained

I asked Ibn Abbas (Allah be pleased with them) about the conversion (of gold and silver for silver and gold). We said: Is it hand to hand exchange? I said: Yes. whereupon he said: There is no harm in it. I informed Abu Sa'id about it, telling him that I had asked Ibn 'Abbas about it and he said: Is…

أَضْعَفْتَ أَرْبَيْتَ لاَ تَقْرَبَنَّ هَذَا إِذَا رَابَكَ مِنْ تَمْرِكَ شَىْءٌ فَبِعْهُ ثُمَّ اشْتَرِ الَّذِي تُرِيدُ مِنَ التَّمْرِ ‏"

Narrated by Ibn ‘Abbās