that the Prophet ﷺ prohibited that one use his name and his Kunyah; naming themselves Muhammad Abul-Qasim.
أَنَّ النَّبِيَّ ﷺ نَهَى أَنْ يَجْمَعَ أَحَدٌ بَيْنَ اسْمِهِ وَكُنْيَتِهِ وَيُسَمَّى مُحَمَّدًا أَبَا الْقَاسِمِ وَفِي الْبَابِ عَنْ جَابِرٍ
that the Prophet ﷺ prohibited that one use his name and his Kunyah; naming themselves Muhammad Abul-Qasim.
أَنَّ النَّبِيَّ ﷺ نَهَى أَنْ يَجْمَعَ أَحَدٌ بَيْنَ اسْمِهِ وَكُنْيَتِهِ وَيُسَمَّى مُحَمَّدًا أَبَا الْقَاسِمِ وَفِي الْبَابِ عَنْ جَابِرٍ
[Machine] The translation of the given text is: "On the authority of the Messenger of Allah ﷺ , he prohibited anyone from combining his name and his nickname to be called Muhammad Abu Al-Qasim."
عَنْ رَسُولِ اللَّهِ ﷺ أَنَّهُ «نَهَى أَنْ يَجْمَعَ أَحَدٌ اسْمَهُ وَكُنْيَتَهُ فَيُسَمَّى مُحَمَّدٌ أَبَا الْقَاسِمِ»