حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ أَبِي الزِّنَادِ، عَنْ بُسْرِ بْنِ سَعِيدٍ، عَنْ عُبَيْدٍ أَبِي صَالِحٍ، مَوْلَى السَّفَّاحِ أَنَّهُ قَالَ بِعْتُ بَزًّا لِي مِنْ أَهْلِ دَارِ نَخْلَةَ إِلَى أَجَلٍ ثُمَّ أَرَدْتُ الْخُرُوجَ إِلَى الْكُوفَةِ فَعَرَضُوا عَلَىَّ أَنْ أَضَعَ عَنْهُمْ بَعْضَ الثَّمَنِ وَيَنْقُدُونِي فَسَأَلْتُ عَنْ ذَلِكَ زَيْدَ بْنَ ثَابِتٍ فَقَالَ لاَ آمُرُكَ أَنْ تَأْكُلَ هَذَا وَلاَ تُوكِلَهُ .
Yahya related to me from Malik from Abu'z-Zinad from Busr ibnSaid from Ubayd, Abu Salih, the mawla of as-Saffah that he said, "Isold drapery to the people of Dar Nakhla on credit. Then I wanted togo to Kufa, so they proposed that I reduce the price for them and theywould pay me immediately . I asked Zayd ibn Thabit about that, and hesaid, 'I order you not to accept increase or to give to anybody.' " Translation Not Available
Book Ref: Muwatta Imam Malik Book 31 Hadith 1369
Web Ref: Muwatta Imam Malik Book 31 Hadith 82