Hadith 114

Sahih Bukhari

Book 34: Sales and Trade

Chapter 71

It is forbidden to meet the caravans on the way (to buy the goods away from the market)

باب النَّهْىِ عَنْ تَلَقِّي الرُّكْبَان

And the one who buys them, his bargain is invalid as he is a sinner if he knows it, for it is a kind of deceit, and deceit is forbidden.
وَأَنَّ بَيْعَهُ مَرْدُودٌ، لأَنَّ صَاحِبَهُ عَاصٍ آثِمٌ إِذَا كَانَ بِهِ عَالِمًا، وَهُوَ خِدَاعٌ فِي الْبَيْعِ، وَالْخِدَاعُ لاَ يَجُوزُ.
Sahih al-Bukhari 2163
حَدَّثَنِي عَيَّاشُ بْنُ الْوَلِيدِ، حَدَّثَنَا عَبْدُ الأَعْلَى، حَدَّثَنَا مَعْمَرٌ، عَنِ ابْنِ طَاوُسٍ، عَنْ أَبِيهِ، قَالَ سَأَلْتُ ابْنَ عَبَّاسٍ ـ رضى الله عنهما ـ مَا مَعْنَى قَوْلِهِ ‏ ‏‏.‏ فَقَالَ لاَ يَكُنْ لَهُ سِمْسَارًا‏.‏
"‏ لاَ يَبِيعَنَّ حَاضِرٌ لِبَادٍ ‏"
Tawus:

I asked Ibn `Abbas, "What is the meaning of, 'No town dweller should sell (or buy) for a desert dweller'?" Ibn `Abbas said, "It means he should not become his broker."