The Prophet ﷺ said: Meetings are confidential except three: those for the purpose of shedding blood unlawfully, or committing fornication, or acquiring property unjustly. (Using translation from Abū Dāʾūd 4869)
قَالَ رَسُولُ اللهِ ﷺ الْمَجَالِسُ بِالْأَمَانَةِ إِلَّا ثَلَاثَةَ مَجَالِسَ سَفْكُ دَمٍ حَرَامٍ أَوْ فَرْجٍ حَرَامٍ أَوِ اقْتِطَاعُ مَالٍ بِغَيْرِ حَقٍّ