[Machine] The Prophet ﷺ once visited a group of people and each of us had a nickname or two. So when he called someone by his nickname, we said, "O Messenger of Allah, this nickname is disliked by this person." He said, "Do not use nicknames that hurt or insult each other."  

عَنْ عُمُومَةٍ لَهُ قَدِمَ النَّبِيُّ ﷺ وَلَيْسَ أَحَدٌ مِنَّا إِلَّا لَهُ لَقَبٌ أَوْ لَقَبَانِ قَالَ فَكَانَ إِذَا دَعَا بِلَقَبِهِ قُلْنَا يَا رَسُولَ اللهِ إِنَّ هَذَا يَكْرَهُ هَذَا قَالَ فَنَزَلَتْ وَلَا تَنَابَزُوا بِالْأَلْقَابِ