It was narrated from Jabir bin 'Abdullah that the Prophet (ﷺ) 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." (TR)
English reference (TR): Vol. 3, Book 12, Hadith 2176 (TR)
Arabic reference (TR): Book 12, Hadith 2260 (TR)