[Machine] The Messenger of Allah ﷺ forbade "al-najsh".  

أَنَّ رَسُولَ اللهِ ﷺ نَهَى عَنِ النَّجْشِ  

[Machine] Abu Al-Abbas Al-Asamm narrated that Al-Rabi' and Al-Shafi'i and Sufyan and Ibn Shihab and Ibn Al-Musayyib and Abu Hurairah said that the Messenger of Allah ﷺ said, "Do not try to outbid each other." And I (Al-Shafi'i) and Sufyan and Malik and Abu Al-Zinad and Al-A'raj and Abu Hurairah narrated the Prophet ﷺ saying the same. And Al-Shafi'i and Sufyan and Malik narrated from Abu Al-Zinad and Ayyub and Ibn Sireen from Abu Hurairah that the Prophet ﷺ said the same.  

ثنا أَبُو الْعَبَّاسِ الْأَصَمُّ أنا الرَّبِيعُ أنا الشَّافِعِيُّ أنا سُفْيَانُ عَنِ ابْنِ شِهَابٍ عَنِ ابْنِ الْمُسَيِّبِ عَنْ أَبِي هُرَيْرَةَ قَالَ قَالَ رَسُولُ اللهِ ﷺ لَا تَنَاجَشُوا 10883 قَالَ وَأنا الشَّافِعِيُّ أنا سُفْيَانُ وَمَالِكٌ عَنْ أَبِي الزِّنَادِ عَنِ الْأَعْرَجِ عَنْ أَبِي هُرَيْرَةَ عَنِ النَّبِيِّ ﷺ مِثْلَهُ 10884 قَالَ وَأَخْبَرَنَا الشَّافِعِيُّ أنا سُفْيَانُ وَمَالِكٌ عَنْ أَبِي الزِّنَادِ عَنْ أَيُّوبَ عَنِ ابْنِ سِيرِينَ عَنْ أَبِي هُرَيْرَةَ عَنِ النَّبِيِّ ﷺ مِثْلَهُ  

[Machine] That a man attends the goods being sold and he gives something for it, but he does not intend to buy it; the horse sellers follow his example and they give more for it than they would have given if they had not heard his bidding. So, whoever incites or encourages (others) to bid is considered a transgressor, if he knows about the prohibition of the Messenger of Allah ﷺ . He ﷺ said: "And selling is permissible, and it is not spoiled by the disobedience of a man who incites (others to bid)." He ﷺ said: "And there had been a sale made with someone who exceeded the covenant of the Messenger of Allah ﷺ , and the sale is valid." And it is allowed that someone who does not intend to buy adds to the price.  

أَنْ يَحْضُرَ الرَّجُلُ السِّلْعَةَ تُبَاعُ فَيُعْطِي بِهَا الشَّيْءَ وَهُوَ لَا يُرِيدُ شِرَاءَهَا؛ لِيَقْتَدِيَ بِهِ السُّوَّامُ فَيُعْطُونَ بِهَا أَكْثَرَ مِمَّا كَانُوا يُعْطُونَ لَوْ لَمْ يَسْمَعُوا سَوْمَهُ فَمَنْ نَجَشَ فَهُوَ عَاصٍ بِالنَّجْشِ إِنْ كَانَ عَالِمًا بِنَهْيِ رَسُولِ اللهِ ﷺ قَالَ وَالْبَيْعُ جَائِزٌ لَا يُفْسِدُهُ مَعْصِيَةُ رَجُلٍ نَجَشَ عَلَيْهِ قَالَ وَقَدْ بِيعَ فِيمَنْ يَزِيدُ عَلَى عَهْدِ رَسُولِ اللهِ ﷺ فَجَازَ الْبَيْعُ وَقَدْ يَجُوزُ أَنْ يَكُونَ زَادَ مَنْ لَا يُرِيدُ الشِّرَاءَ  

[Machine] The Prophet ﷺ called out for a rope and a pot to hang from, asking who would like to contribute. A man gave him a dirham, and another man gave him two dirhams, so he sold it.  

أَنَّ النَّبِيَّ ﷺ نَادَى عَلَى حِلْسٍ وَقَدَحٍ فِيمَنْ يَزِيدُ فَأَعْطَاهُ رَجُلٌ دِرْهَمًا وَأَعْطَاهُ آخَرُ دِرْهَمَيْنِ فَبَاعَهُ  

[Machine] The Messenger of Allah ﷺ prohibited anyone from selling to his brother until he leaves, except for spoils of war and inheritances. And likewise.  

نَهَى رَسُولُ اللهِ ﷺ أَنْ يَبِيعَ أَحَدُكُمْ عَلَى بَيْعِ أَخِيهِ حَتَّى يَذَرَ إِلَّا الْغَنَائِمَ وَالْمَوَارِيثَ وَكَذَلِكَ