[Machine] I heard Abu Huraira saying that the Messenger of Allah ﷺ forbade buying a captive for a ransom. And Abu Nuaim said, "He does not sell a captive for a ransom."
سَمِعْتُ أَبَا هُرَيْرَةَ يَقُولُ نَهَى رَسُولُ اللهِ ﷺ أَنْ يَشْتَرِيَ حَاضِرٌ لِبَادٍ وَقَالَ أَبُو نُعَيْمٍ لَا يَبِيعُ حَاضِرٌ لِبَادٍ
The townsman'should not sell for a man from the desert (with a view to taking advantage of his ignorance of the market conditions of the city). And Zuhair reported from the Prophet ﷺ that he forbade the townsman to sell on behalf of the man from the desert.
النَّبِيَّ ﷺ قَالَ لاَ يَبِعْ حَاضِرٌ لِبَادٍ وَقَالَ زُهَيْرٌ عَنِ النَّبِيِّ ﷺ أَنَّهُ نَهَى أَنْ يَبِيعَ حَاضِرٌ لِبَادٍ
"The Messenger of Allah ﷺ forbade a city-dweller to sell for a Bedouin." (Sahih)I (Tawus) said to Ibn 'Abbas: "What is meant by the words: 'A city-dweller selling for a Bedouin?' He said: "He should not be a broker for him."
نَهَى رَسُولُ اللَّهِ ﷺ أَنْ يَبِيعَ حَاضِرٌ لِبَادٍ قُلْتُ لاِبْنِ عَبَّاسٍ مَا قَوْلُهُ حَاضِرٌ لِبَادٍ قَالَ لاَ يَكُونُ لَهُ سِمْسَارًا