He, Allah’s blessings be upon him and his Family, also said: «Do not perform tanajush nor tadabur.» Its meaning is that a man increases to another man the price of a merchandise while he does not want to buy it, but in order for another to hear him and bid due to his bidding. One who performs tanajush is a traitor. As for tadabur, it is quarreling and severance of relation. It stems from that a man turns his backside to his companion and turns his face from him.