It is narrated marfu‘an from Hazrat Abu Hurairah (may Allah be pleased with him) that do not tie the udders of a goat or she-camel in order to sell it at a good price. Whoever (being deceived by this) buys such a she-camel or goat, he has the choice of two things, whichever is better for him: either he keeps the animal with himself (and settles the matter), or he returns the animal to the owner and gives along with it one sa‘ of dates. No man should sell over his brother’s sale, and no woman should demand the divorce of her sister so that she may gather what is in her bowl, for she will only get what has been written for her. And do not deceive one another, and do not make deals with traders by meeting them outside (the market).