Sunan an-Nasa'i 4606
سنن النسائي#4606Sahihأَخْبَرَنَا عُبَيْدُ اللَّهِ بْنُ سَعِيدٍ، قَالَ حَدَّثَنَا يَحْيَى، عَنْ عُبَيْدِ اللَّهِ، قَالَ أَخْبَرَنِي نَافِعٌ، عَنِ ابْنِ عُمَرَ، أَنَّهُمْ كَانُوا يَبْتَاعُونَ عَلَى عَهْدِ رَسُولِ اللَّهِ صلى الله عليه وسلم فِي أَعْلَى السُّوقِ جُزَافًا فَنَهَاهُمْ رَسُولُ اللَّهِ صلى الله عليه وسلم أَنْ يَبِيعُوهُ فِي مَكَانِهِ حَتَّى يَنْقُلُوهُ .
It was narrated from Ibn 'Umar that:they used to buy and sell during the time of the Messenger of Allah at the top of the marketplace without measuring. The Messenger of Allah forbade them to sell it in the place where they had bought it until they moved it
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 44:158