Yahya ibn Yahya al-Tamimi narrated to us, Abu Khaythamah informed us, from Abu al-Zubayr, from Jabir. And Ahmad ibn Yunus narrated to us, Zuhayr narrated to us, Abu al-Zubayr narrated to us, from Jabir, who said: The Messenger of Allah, peace and blessings be upon him, said: "Let not a townsman sell for a Bedouin. Leave the people, so that Allah may provide for some of them through others." However, in Yahya's narration, it is: "is provided for."
´Jabir said:` "The Messenger of Allah said: 'A town-dweller should not sell for a direst-dweller. Leave the people alone and let Allah provide for them from one another."" (Sahih )
Hafiz Muhammad Ameen
The purpose is that transactions should proceed in a natural manner. Artificial scarcity should not be created, nor should inflation be caused through hoarding; rather, as production comes in, it should be sold in the market and continue to reach those in need. It is evident that if a city dweller sells the goods of a villager, he will engage in hoarding and create artificial scarcity so that the produce can be sold at a higher price for his own benefit.
Source: Sunan Nasa'i: Translation and Benefits by Shaykh Hafiz Muhammad Amin Hafizullah, Page: 4500