Sahih Muslim Book - 22, Hadith - 4071

حَدَّثَنَا مُحَمَّدُ بْنُ حَاتِمِ بْنِ مَيْمُونٍ حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ عَنْ عَمْرٍو عَنْ أَبِى الْمِنْهَالِ قَالَ بَاعَ شَرِيكٌ لِى وَرِقًا بِنَسِيئَةٍ إِلَى الْمَوْسِمِ أَوْ إِلَى الْحَجِّ فَجَاءَ إِلَىَّ فَأَخْبَرَنِى فَقُلْتُ هَذَا أَمْرٌ لاَ يَصْلُحُ. قَالَ قَدْ بِعْتُهُ فِى السُّوقِ فَلَمْ يُنْكِرْ ذَلِكَ عَلَىَّ أَحَدٌ. فَأَتَيْتُ الْبَرَاءَ بْنَ عَازِبٍ فَسَأَلْتُهُ فَقَالَ قَدِمَ النَّبِىُّ -صلى الله عليه وسلم- الْمَدِينَةَ وَنَحْنُ نَبِيعُ هَذَا الْبَيْعَ فَقَالَ « مَا كَانَ يَدًا بِيَدٍ فَلاَ بَأْسَ بِهِ وَمَا كَانَ نَسِيئَةً فَهُوَ رِبًا ». وَائْتِ زَيْدَ بْنَ أَرْقَمَ فَإِنَّهُ أَعْظَمُ تِجَارَةً مِنِّى. فَأَتَيْتُهُ فَسَأَلْتُهُ فَقَالَ مِثْلَ ذَلِكَ.

It was narrated that Abu Al-Minhal said: Sharik sold some silver for me, to be paid for during the Hajj season. He came to me and told me, and I said: "This is not good." He said: "I sold it in the market and no one objected." I went to Al-Bara' bin 'Azib and asked him, and he said: "When the Prophet (s.a.w) came to Al-Madinah, we used to sell in this fashion, and he said: 'Whatever is hand to hand, there is nothing wrong with it. But whatever is to be paid for later is Riba."' Go to Zaid bin Arqam for he is more involved in trade than I am. So I went to him and asked him, and he said something similar.