"The Messenger of Allah said: 'Whoever buys food let him not sell it until he takes possession of it. Ibn 'Abbas said: "I think the same applies to everything else as to food."
"I bought some food and made food and made a profit on it (by selling it) before I took possession of it. I came to the Messenger of Allah and told him about that and he said: 'Do not sell it until you take possession of it."'
"During the time the Messenger of Allah we used to buy food, and he sent someone to tell us to remove it from the place where we had bought it, to another place, b before selling"
أَخْبَرَنَا 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 .
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.
they used to buy foold from the riders at the time of the Messenger of Allah and he forbade them to sell it in the place where they had bought it until they moved it to the food market.
أَخْبَرَنَا نَصْرُ بْنُ عَلِيٍّ، قَالَ حَدَّثَنَا يَزِيدُ، عَنْ مَعْمَرٍ، عَنِ الزُّهْرِيِّ، عَنْ سَالِمٍ، عَنْ أَبِيهِ، قَالَ رَأَيْتُ النَّاسَ يُضْرَبُونَ عَلَى عَهْدِ رَسُولِ اللَّهِ صلى الله عليه وسلم إِذَا اشْتَرَوُا الطَّعَامَ جُزَافًا أَنْ يَبِيعُوهُ حَتَّى يُئْوُوهُ إِلَى رِحَالِهِمْ .
"I saw people being beaten (in punishment) at the time of the Messenger of Allah for buying food unmeasured and selling it before bringing it to their own camp."