Messenger of Allah ﷺ said, "Do not urge somebody to return what he has already bought (i.e. in optional sale) from another seller so as to sell him your own goods."  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ لاَ يَبِيعُ بَعْضُكُمْ عَلَى بَيْعِ أَخِيهِ  

[Machine] Ibn Umar narrated that the Messenger of Allah ﷺ prohibited any of you from selling over the sale of his brother, except for spoils of war and inheritances.  

ابْنُ عُمَرَ نَهَى رَسُولُ اللهِ ﷺ أَنْ يَبِيعَ أَحَدُكُمْ عَلَى بَيْعِ أَخِيهِ إِلَّا الْغَنَائِمَ وَالْمَوَارِيثَ  

[Machine] The Prophet ﷺ said, "None of you should sell upon the sale of his brother, nor propose to marry the betrothed of his brother, unless he gives permission."  

عَنِ النَّبِيِّ ﷺ قَالَ لَا يَبِعْ أَحَدُكُمْ عَلَى بَيْعِ أَخِيهِ وَلَا يَخْطُبْ عَلَى خِطْبَةِ أَخِيهِ إِلَّا أَنْ يَأْذَنَ لَهُ  

[Machine] The Messenger of Allah ﷺ said, "None of you should sell the property of his brother without his permission."  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ «لَا يَبِعْ أَحَدُكُمْ عَلَى بَيْعِ أَخِيهِ إِلَّا بِإِذْنِهِ»  

[Machine] The Messenger of Allah ﷺ said, "None of you should sell upon the sale of his brother, nor propose marriage upon his engagement."  

عَنْ رَسُولِ اللهِ ﷺ قَالَ «لَا يَبْتَاعُ أَحَدُكُمْ عَلَى بَيْعِ أَخِيهِ وَلَا يَخْطُبُ عَلَى خِطْبَتِهِ»  

Messenger of Allah ﷺ said, "Do not urge somebody to return what he has already bought (i.e. in optional sale) from another seller so as to sell him your own goods." (Using translation from Bukhārī 2139)   

عَنِ النَّبِيِّ ﷺ قَالَ «لَا يَبِيعُ أَحَدُكُمْ عَلَى بَيْعِ بَعْضٍ»