[Machine] "And his sale is null and void, for its owner is a sinful transgressor if he is knowledgeable about it, and it is deceit in the transaction, and deceit is not permissible."
وَأَنَّ بَيْعَهُ مَرْدُودٌ، لأَنَّ صَاحِبَهُ عَاصٍ آثِمٌ إِذَا كَانَ بِهِ عَالِمًا، وَهُوَ خِدَاعٌ فِي الْبَيْعِ، وَالْخِدَاعُ لاَ يَجُوزُ.
The Prophet ﷺ forbade the meeting (of caravans) on the way and the selling of goods by an inhabitant of the town on behalf of a desert dweller.
نَهَى النَّبِيُّ ﷺ عَنِ التَّلَقِّي وَأَنْ يَبِيعَ حَاضِرٌ لِبَادٍ
I asked Ibn ʿAbbas, "What is the meaning of, 'No town dweller should sell (or buy) for a desert dweller'?" Ibn ʿAbbas said, "It means he should not become his broker."
لاَ يَكُنْ لَهُ سِمْسَارًا
Whoever buys an animal which has been kept unmilked for a long time, could return it, but has to pay a Sa of dates along with it. And the Prophet ﷺ forbade meeting the owners of goods on the way away from the market.
مَنِ اشْتَرَى مُحَفَّلَةً فَلْيَرُدَّ مَعَهَا صَاعًا قَالَ وَنَهَى النَّبِيُّ ﷺ عَنْ تَلَقِّي الْبُيُوعِ
Messenger of Allah ﷺ said, "You should not try to cancel the purchases of one another (to get a benefit thereof), and do not go ahead to meet the caravan (for buying the goods) (but wait) till it reaches the market."
أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ لاَ يَبِيعُ بَعْضُكُمْ عَلَى بَيْعِ بَعْضٍ وَلاَ تَلَقَّوُا السِّلَعَ حَتَّى يُهْبَطَ بِهَا إِلَى السُّوقِ