(15) باب تَحْرِيمِ مُنَاجَاةِ الاِثْنَيْنِ دُونَ الثَّالِثِ بِغَيْرِ رِضَاهُ
'Abdullah reported Allah's Messenger (ﷺ) as saying:
If you are three, two should not converse secretly to the exclusion of your companion for that hurts his feelings. (RU)
Reference (RU): Sahih Muslim 2184 b (RU)
In-book reference (RU): Book 39, Hadith 51 (RU)
USC-MSA web (English) reference(deprecated numbering scheme): Book 26, Hadith 5422 (RU)