"The Messenger of Allah ﷺ was in Baqi', and a man called out to another man: 'O Abul-Qasim!' The Messenger of Allah ﷺ turned to him, and he said: 'I didn't mean you.' The Messenger of Allah ﷺ said: 'Call yourselves by my name but do not call yourselves by my Kunyah.'"
كَانَ رَسُولُ اللَّهِ ﷺ بِالْبَقِيعِ فَنَادَى رَجُلٌ رَجُلاً يَا أَبَا الْقَاسِمِ فَالْتَفَتَ إِلَيْهِ رَسُولُ اللَّهِ ﷺ فَقَالَ إِنِّي لَمْ أَعْنِكَ فَقَالَ رَسُولُ اللَّهِ ﷺ تَسَمَّوْا بِاسْمِي وَلاَ تَكْتَنُوا بِكُنْيَتِي