[Machine] The Messenger of Allah ﷺ prohibited two people from having a secret conversation without the presence of a third person if there is no one else with them. He also prohibited a person from leaving another person in his gathering, saying that when he returns, he is more entitled to it.
نَهَى رَسُولُ اللهِ ﷺ أَنْ يَتَنَاجَى اثْنَانِ دُونَ الثَّالِثِ إِذَا لَمْ يَكُنْ مَعَهُمْ غَيْرُهُمْ قَالَ وَنَهَى النَّبِيُّ ﷺ أَنْ يَخْلُفَالرَّجُلُ الرَّجُلَ فِي مَجْلِسِهِ وَقَالَ إِذَا رَجَعَ فَهُوَ أَحَقُّ بِهِ