Is the purchase of goods from Beduins (A'rab) by city dwellers valid?

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The purchase of goods from Beduins by city dwellers is valid according to Ahmad ibn Hanbal and Hasan al-Basri. The rationale for validity is that the prohibition explicitly targets selling to them, not buying from them. The prohibition against selling aims to show kindness to city dwellers by stabilizing prices and preventing harm to them. This harm is not present in buying from Beduins, as they are not subjected to exploitation (ghabn). Rather, buying from them is considered preventing harm to them, and the Lawgiver views all creation equally. Thus, just as measures are established to prevent harm to city dwellers, imposing harm upon Beduins is not necessarily required.