Narrated Abdullah bin Mas'ud (may Allah be pleased with him): The Prophet (peace and blessings of Allah be upon him) said: When you are three people, then two of you should not converse secretly excluding the third, for that will grieve him. However, if there are more people, then there is no harm.
Hadith Referenceاللؤلؤ والمرجان / كتاب السلام / 1410
Hadith Gradingمحدثین:«صحیح»
Hadith Takhrij«صحیح، أخرجه البخاري في: 79 كتاب الاستئذان: 47 باب إذا كانوا أكثر من ثلاثة فلا بأس بالمسارة والمناجاة»