أَخْبَرَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ ، حَدَّثَنَا سُلَيْمَانُ هُوَ : ابْنُ بِلَالٍ ، عَنْ عَبْدِ الْمَجِيدِ بْنِ سُهَيْلِ بْنِ عَبْدِ الرَّحْمَنِ ، أَنَّهُ سَمِعَ سَعِيدَ بْنَ الْمُسَيِّبِ يُحَدِّثُ أَنَّ أَبَا سَعِيدٍ الْخُدْرِيَّ وَأَبَا هُرَيْرَةَ حَدَّثَاهُ : أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ بَعَثَ أَخَا بَنِي عَدِيٍّ الْأَنْصَارِيَّ فَاسْتَعْمَلَهُ عَلَى خَيْبَرَ ، فَقَدِمَ بِتَمْرٍ جَنِيبٍ.
قَالَ ابْنُ مَسْلَمَةَ : يَعْنِي : جَيِّدًا ، فَقَالَ لَهُ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ : " أَكُلُّ تَمْرِ خَيْبَرَ هَكَذَا؟ ".
قَالَ : لَا وَاللَّهِ يَا رَسُولَ اللَّهِ، إِنَّا لَنَشْتَرِي الصَّاعَ بِالصَّاعَيْنِ مِنَ الْجَمْعِ، فَقَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ :" لَا تَفْعَلُوا، وَلَكِنْ مِثْلًا بِمِثْلٍ، أَوْ بِيعُوا هَذَا، وَاشْتَرُوا بِثَمَنِهِ مِنْ هَذَا، وَكَذَلِكَ الْمِيزَانُ "

Abdullah bin Maslamah told us, Suleiman told us, he is: Ibn Bilal, on the authority of Abdul Majeed bin Suhail bin Abdul Rahman, that He heard Saeed bin Al-Musayyab narrating that Abu Saeed Al-Khudri and Abu Hurairah had told him that the Messenger of God, may God bless him and grant him peace, had sent a brother of Banu Adi Al-Ansari used him against Khaybar, and brought some dates from Janib.
Ibn Maslamah said: meaning: good, so the Messenger of God, may God bless him and grant him peace, said to him: “Can Khaybar dates be eaten like this?”
He said: No, by God, O Messenger of God. We buy one saa’ for two saa’s from the crowd. Then the Messenger of God, may God bless him and grant him peace, said: “Do not do it, but Like for like, or sell this and buy for its price from this, and so is the balance.”