The Prophet ﷺ said, "When you are three persons sitting together, then no two of you should hold secret counsel excluding the third person until you are with some other people too, for that would grieve him."  

قَالَ النَّبِيُّ ﷺ {إِذَا كُنْتُمْ ثَلاَثَةً فَلاَ يَتَنَاجَى رَجُلاَنِ دُونَ الآخَرِ حَتَّى تَخْتَلِطُوا بِالنَّاسِ أَجْلَ أَنْ يُحْزِنَهُ}  

One day the Prophet ﷺ divided and distributed something amongst the people whereupon an Ansari man said, "In this division Allah's Countenance has not been sought." I said, "By Allah! I will go (and inform) the Prophet." So I went to him while he was with a group of people, and I secretly informed him of that, whereupon he became so angry that his face became red, and he then said, "May Allah bestow His Mercy on Moses (for) he was hurt more than that, yet he remained patient."  

قَسَمَ النَّبِيُّ ﷺ يَوْمًا قِسْمَةً فَقَالَ رَجُلٌ مِنَ الأَنْصَارِ إِنَّ هَذِهِ لَقِسْمَةٌ مَا أُرِيدَ بِهَا وَجْهُ اللَّهِ قُلْتُ أَمَا وَاللَّهِ لآتِيَنَّ النَّبِيَّ ﷺ فَأَتَيْتُهُ وَهْوَ فِي مَلأٍ فَسَارَرْتُهُ فَغَضِبَ حَتَّى احْمَرَّ وَجْهُهُ ثُمَّ قَالَ رَحْمَةُ اللَّهِ عَلَى مُوسَى أُوذِيَ بِأَكْثَرَ مِنْ هَذَا فَصَبَرَ