Sunan an-Nasa'i 4561
Muslim bin Yasar and Abdullah bin Ubaid who was called Ibn Hurmuz narrated that 'Ubadah bin As-Samit and Muawiyah met at a stopping place on the road. 'Ubadah told them:
"The Messenger of Allah forbade selling gold for gold, silver for silver, dates for dates, wheat for wheat, barley for barley"- one of them said: "salt for salt," but the other did not say it-"unless it was equal amount for equal amount, like for like." One of them said: "Whoever gives more or takes more has engaged in Riba," but he other one did not say it. "And he commanded us to sell gold for silver and silver for gold, and wheat for barley and barley for wheat, hand to hand, however we wanted."
أَخْبَرَنَا الْمُؤَمَّلُ بْنُ هِشَامٍ، قَالَ حَدَّثَنَا إِسْمَاعِيلُ، - وَهُوَ ابْنُ عُلَيَّةَ - عَنْ سَلَمَةَ بْنِ عَلْقَمَةَ، عَنِ ابْنِ سِيرِينَ، قَالَ حَدَّثَنِي مُسْلِمُ بْنُ يَسَارٍ، وَعَبْدُ اللَّهِ بْنُ عُبَيْدٍ، - وَقَدْ كَانَ يُدْعَى ابْنَ هُرْمُزَ - قَالَ جَمَعَ الْمَنْزِلُ بَيْنَ عُبَادَةَ بْنِ الصَّامِتِ وَبَيْنَ مُعَاوِيَةَ حَدَّثَهُمْ عُبَادَةُ، قَالَ نَهَانَا رَسُولُ اللَّهِ صلى الله عليه وسلم عَنْ بَيْعِ الذَّهَبِ بِالذَّهَبِ وَالْفِضَّةِ بِالْفِضَّةِ وَالتَّمْرِ بِالتَّمْرِ وَالْبُرِّ بِالْبُرِّ وَالشَّعِيرِ بِالشَّعِيرِ - قَالَ أَحَدُهُمَا وَالْمِلْحِ بِالْمِلْحِ وَلَمْ يَقُلْهُ الآخَرُ - إِلاَّ سَوَاءً بِسَوَاءٍ مِثْلاً بِمِثْلٍ - قَالَ أَحَدُهُمَا مَنْ زَادَ أَوِ ازْدَادَ فَقَدْ أَرْبَى وَلَمْ يَقُلْهُ الآخَرُ - وَأَمَرَنَا أَنْ نَبِيعَ الذَّهَبَ بِالْفِضَّةِ وَالْفِضَّةَ بِالذَّهَبِ وَالْبُرَّ بِالشَّعِيرِ وَالشَّعِيرَ بِالْبُرِّ يَدًا بِيَدٍ كَيْفَ شِئْنَا ‏.‏