Sunan Ibn Majah, Volume 3, Book 12, Hadith 2176 (DarusSalam) ⓘ
It was narrated from Jabir bin 'Abdullah that the Prophet said: "A city-dweller should not sell for a Bedouin. Leave people to (engage in trade) and Allah will grant them provision through one another."
حَدَّثَنَا هِشَامُ بْنُ عَمَّارٍ، حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ، عَنْ أَبِي الزُّبَيْرِ، عَنْ جَابِرِ بْنِ عَبْدِ اللَّهِ، أَنَّ النَّبِيَّ ـ صلى الله عليه وسلم ـ قَالَ " لاَ يَبِيعُ حَاضِرٌ لِبَادٍ دَعُوا النَّاسَ يَرْزُقُ اللَّهُ بَعْضَهُمْ مِنْ بَعْضٍ " .
also referenced under: Hadith 2176 (Reference) & Book 12, Hadith 2260 (In-Book)