صحيح مسلم بالإنكليزيةBook 26: The Book on Salutations and Greetings (Kitab As-Salam) › Chapter 14: IT IS PROHIBITED FOR TWO PERSONS TO CONVERSE SECRETLY WITHOUT THE CONSENT OF THE THIRD ONE
'Abdullah reported Allah's Messenger (may peace be upon him) as saying: If you are three, two should not converse secretly to the exclusion of your companion for that hurts his feelings.