Abu al-Zanad أبو الزناد · Wages (Kitab Al-Ijarah)

The Messenger of Allah (ﷺ) as saying: A townsman must not sell for a man from the desert ; and leave people alone, Allah will give them provision from one another.

The Prophet (ﷺ) said: The price paid for a dog, the price given to a soothsayer, and the hire paid to a prostitute are not lawful.

I saw that during the time of the Messenger of Allah (ﷺ) the people were beaten when they bought grain on the same spot and sold it there without moving it to their houses.