Messenger of Allah ﷺ forbade (1) the meeting of the caravan (of goods) on the way, (2) and that a residing person buys for a bedouin, (3) and that a woman stipulates the divorce of the wife of the would-be husband, (4) and that a man tries to cause the cancellation of a bargain concluded by another. He also forbade An-Najsh (see Hadith 824) and that one withholds the milk in the udder of the animal so that he may deceive people on selling it.  

نَهَى رَسُولُ اللَّهِ ﷺ عَنِ التَّلَقِّي وَأَنْ يَبْتَاعَ الْمُهَاجِرُ لِلأَعْرَابِيِّ وَأَنْ تَشْتَرِطَ الْمَرْأَةُ طَلاَقَ أُخْتِهَا وَأَنْ يَسْتَامَ الرَّجُلُ عَلَى سَوْمِ أَخِيهِ وَنَهَى عَنِ النَّجْشِ وَعَنِ التَّصْرِيَةِ  

"The Messenger of Allah forbade meeting (the traders on the way) a Muhajhir selling for a Bedouin, keeping the milk in the udder of an animal (so as to increase its price), artificially inflating prices, a man to urge the cancellation of sale already agreed upon and a woman to ask that her sister (in faith) be divorced."  

نَهَى رَسُولُ اللَّهِ ﷺ عَنِ التَّلَقِّي وَأَنْ يَبِيعَ مُهَاجِرٌ لِلأَعْرَابِيِّ وَعَنِ التَّصْرِيَةِ وَالنَّجْشِ وَأَنْ يَسْتَامَ الرَّجُلُ عَلَى سَوْمِ أَخِيهِ وَأَنْ تَسْأَلَ الْمَرْأَةُ طَلاَقَ أُخْتِهَا  

"The Messenger of Allah forbade meeting (the traders on the way) a Muhajhir selling for a Bedouin, keeping the milk in the udder of an animal (so as to increase its price), artificially inflating prices, a man to urge the cancellation of sale already agreed upon and a woman to ask that her sister (in faith) be divorced." (Using translation from Nasāʾī 4491)  

نَهَى النَّبِيُّ ﷺ عَنِ التَّلَقِّي وَأَنْ يَبِيعَ مُهَاجِرٌ لِأَعْرَابِيٍّ وَعَنِ التَّصْرِيَةِ وَالنَّجْشِ وَأَنْ يُسَاوِمَ الرَّجُلُ عَلَى سَوْمِ أَخِيهِ وَأَنْ تَسْأَلَ الْمَرْأَةُ طَلَاقَ أُخْتِهَا