(4) باب تَحْرِيمِ بَيْعِ الرَّجُلِ عَلَى بَيْعِ أَخِيهِ وَسَوْمِهِ عَلَى سَوْمِهِ وَتَحْرِيمِ النَّجْشِ وَتَحْرِيمِ التَّصْرِيَةِ
Abu Huraira reported Allah's Messenger (ﷺ) as saying:
A Muslim should not purchase (in opposition) to his brother. (RU)
Reference (RU): Sahih Muslim 1515 a (RU)
In-book reference (RU): Book 21, Hadith 13 (RU)
USC-MSA web (English) reference(deprecated numbering scheme): Book 10, Hadith 3619 (RU)