It was narrated that Anas said:
"The Messenger of Allahﷺ was in Baqi', and a man called out to another man: 'O Abul-Qasim!' The Messenger of Allahﷺ turned to him, and he said: 'I didn't mean you.' The Messenger of Allahﷺ said: 'Call yourselves by my name but do not call yourselves by my Kunyah.'"

حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا عَبْدُ الْوَهَّابِ الثَّقَفِيُّ، عَنْ حُمَيْدٍ، عَنْ أَنَسٍ، قَالَ 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 " .