[Machine] The Messenger of Allah ﷺ prohibited the receiving of usurious gain. So if a buyer acquires a merchandise, the seller should deal with the best of options when it comes to the market.
نَهَى رَسُولُ اللهِ ﷺ أَنْ يُتَلَقَّى الْجَلَبُفَإِنِ ابْتَاعَ مُبْتَاعٌ فَصَاحِبُ السِّلْعَةِ بِالْخِيَارِ إِذَا وَرَدَتِ السُّوقَ
"The Prophet ﷺ prohibited meeting the goods being brought (to the market). If someone were to meet them and buy them, then the owner of the goods retains the option when he reaches the market."
أَنَّ النَّبِيَّ ﷺ نَهَى أَنْ يُتَلَقَّى الْجَلَبُ فَإِنْ تَلَقَّاهُ إِنْسَانٌ فَابْتَاعَهُ فَصَاحِبُ السِّلْعَةِ فِيهَا بِالْخِيَارِ إِذَا وَرَدَ السُّوقَ