وعنه رضي الله عنه قال: نهى رسول الله صلى الله عليه وآله وسلم أن يبيع حاضر لباد ، ولا تناجشوا ، ولا يبيع الرجل على بيع أخيه ، ولا يخطب على خطبة أخيه ، ولا تسأل المرأة طلاق أختها ، لتكفأ ما في إنائها. متفق عليه ، ولمسلم: " لا يسوم المسلم على سوم أخيه ".
Narrated [Abu Hurairah (RA)]: Allah's Messenger (ﷺ) forbade, a city-dweller to sell for a man from the desert; one to bid against another (to raise the price); that someone sell (his product) by canceling the sale of his brother; to propose (marriage) to a woman after his brother has done so; or a woman to ask to have her sister divorced in order to deprive her of what belongs to her. [Agreed upon]. Muslim has: "A Muslim must not offer a price above that offered by another Muslim."