Sunan Ibn Majah 2264

حَدَّثَنَا عَلِيُّ بْنُ مُحَمَّدٍ، ‏‏‏‏‏‏حَدَّثَنَا وَكِيعٌ، ‏‏‏‏‏‏ وَإِسْحَاق بْنُ سُلَيْمَانَ، ‏‏‏‏‏‏قَالَا:‏‏‏‏ حَدَّثَنَا مَالِكُ بْنُ أَنَسٍ، ‏‏‏‏‏‏عَنْ عَبْدِ اللَّهِ بْنِ يَزِيدَمَوْلَى الْأَسْوَدِ بْنِ سُفْيَانَ، ‏‏‏‏‏‏أَنَّ زَيْدًا أَبَا عَيَّاشٍ مَوْلًى لِبَنِي زُهْرَةَ أَخْبَرَهُ، ‏‏‏‏‏‏أَنَّهُ سَأَلَ سَعْدَ بْنَ أَبِي وَقَّاصٍ عَنِ اشْتِرَاءِ الْبَيْضَاءِ بِالسُّلْتِ؟، ‏‏‏‏‏‏فَقَالَ لَهُ سَعْدٌ:‏‏‏‏ أَيَّتُهُمَا أَفْضَلُ، ‏‏‏‏‏‏قَالَ:‏‏‏‏ الْبَيْضَاءُ فَنَهَانِي عَنْهُ، ‏‏‏‏‏‏وَقَالَ:‏‏‏‏ إِنِّي سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ سُئِلَ عَنِ اشْتِرَاءِ الرُّطَبِ بِالتَّمْرِ، ‏‏‏‏‏‏فَقَالَ:‏‏‏‏ أَيَنْقُصُ الرُّطَبُ إِذَا يَبِسَ؟ ، ‏‏‏‏‏‏قَالُوا:‏‏‏‏ نَعَمْ، ‏‏‏‏‏‏فَنَهَى عَنْ ذَلِكَ.

It was narrated from 'Abdullah bin Yazid, the freed slave of Al-Aswad bin Sufyan, that : Zaid, Abu 'Ayyash, the freed slave of Bani Zuhrah, told him that he asked Sa'd bin Abu Waqqas about buying wheat with barley. Sa'd said to him: Which of them is better? He said: Wheat. He told him not to do that and said: I heard the Messenger of Allah (ﷺ) being asked about buying fresh dates with dried dates, and he said: 'Do fresh dates decrease in weight when they become dry?' They said: 'Yes.' So he told them not to do that.