Prophetic wisdom on the etiquettes of a group of three

Abdullah bin Mas’ud (may Allah be pleased with him) narrated that the Prophet of Allah (peace be upon him) said: إِذَا كُنْتُمْ ثَلاَثَةً فَلاَ يَتَنَاجَى اثْنَانِ دُونَ الثَّالِثِ، فَإِنَّهُ يُحْزِنُهُ ذَلِكَ‏.‏ ‘When three of...