(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. (IT)
Reference (IT): Sahih Muslim 2184 b (IT)
In-book reference (IT): Book 39, Hadith 51 (IT)
USC-MSA web (English) reference(deprecated numbering scheme): Book 26, Hadith 5422 (IT)