None amongst you should outbid another in a transaction, nor should he make proposals of marriage upon the proposal made by someone else.

عَنِ النَّبِيِّ ﷺ قَالَ لاَ يَبِعْ بَعْضُكُمْ عَلَى بَيْعِ بَعْضٍ وَلاَ يَخْطُبْ بَعْضُكُمْ عَلَى خِطْبَةِ بَعْضٍ

One amongst you should not enter into a transaction when another is bargaining.

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ لاَ يَبِعْ بَعْضُكُمْ عَلَى بَيْعِ بَعْضٍ

That the Messenger of Allah ﷺ said: "None of you is to sell over the sale of others, nor to propose over the proposal of others." [He said:] There are narration on this topic from Abu Hurairah and Samurah.

عَنِ النَّبِيِّ ﷺ قَالَ لاَ يَبِيعُ بَعْضُكُمْ عَلَى بَيْعِ بَعْضٍ وَلاَ يَخْطُبُ بَعْضُكُمْ عَلَى خِطْبَةِ بَعْضٍ قَالَ وَفِي الْبَابِ عَنْ أَبِي هُرَيْرَةَ وَسَمُرَةَ

"Let one of you not undersell another."[1]

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ لاَ يَبِيعُ بَعْضُكُمْ عَلَى بَيْعِ بَعْضٍ

None amongst you should outbid another in a transaction, nor should he make proposals of marriage upon the proposal made by someone else. (Using translation from Muslim 1412a)

سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ لَا يَبِيعُ بَعْضُكُمْ عَلَى بَيْعِ بَعْضٍ وَلَا يَخْطُبُ بَعْضُكُمْ عَلَى خِطْبَةِ بَعْضٍ

[AI] According to the Messenger of Allah ﷺ , he said, "None of you should sell based on the sale of another, nor should anyone propose marriage to someone who has already been proposed to."

عَنْ رَسُولِ اللهِ ﷺ أَنَّهُ قَالَ لَا يَبِيعُ بَعْضُكُمْعَلَى بَيْعِ بَعْضٍ وَلَا يَخْطُبُ عَلَى خِطْبَةِ بَعْضٍ

Yahya related to me from Malik from Nafi from Abdullah ibn Umar that the Messenger of Allah ﷺ said, "Do not let any of you bid against each other."

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ لاَ يَبِعْ بَعْضُكُمْ عَلَى بَيْعِ بَعْضٍ

"Let one of you not undersell another."[1] (Using translation from Ibn Mājah 2171)

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ «لَا يَبِعْ بَعْضُكُمْ عَلَى بَيْعِ بَعْضٍ»