43. Manners / Good Conduct
٤٣۔ كتاب الأدب
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 Messenger of Allah ﷺ: "When you name yourself after me, then do not use my Kunyah."
قَالَ رَسُولُ اللَّهِ ﷺ إِذَا سَمَّيْتُمْ بِاسْمِي فَلاَ تَكْتَنُوا بِي قَالَ هَذَا حَدِيثٌ حَسَنٌ غَرِيبٌ مِنْ هَذَا الْوَجْهِ
that he said: "O Messenger of Allah ﷺ! If I have a son after you do you think I could name him your Kunyah?" He said: "Yes." So he said: "So that was permitted for me."
أَنَّهُ قَالَ يَا رَسُولَ اللَّهِ أَرَأَيْتَ إِنْ وُلِدَ لِي بَعْدَكَ أُسَمِّيهِ مُحَمَّدًا وَأُكْنِيهِ بِكُنْيَتِكَ قَالَ نَعَمْ قَالَ فَكَانَتْ رُخْصَةً لِي هَذَا حَدِيثٌ صَحِيحٌ