Al-Adab Al-Mufrad, Book 35, Hadith 844 (English) ⓘ
Abu Hurayra said, "The Messenger of Allah, may Allah bless him and grant him peace, forbade for someone to have both his name and his kunya. He said, 'I am Abu'l-Qasim. Allah gives and I distribute.'"
حَدَّثَنَا عَبْدُ اللهِ بْنُ يُوسُفَ، قَالَ: حَدَّثَنَا اللَّيْثُ قَالَ: حَدَّثَنِي ابْنُ عَجْلاَنَ، عَنْ أَبِيهِ، عَنْ أَبِي هُرَيْرَةَ قَالَ: نَهَى رَسُولُ اللهِ صلى الله عليه وسلم أَنْ نَجْمَعَ بَيْنَ اسْمِهِ وَكُنْيَتِهِ، وَقَالَ: أَنَا أَبُو الْقَاسِمِ، وَاللَّهُ يُعْطِي، وَأَنَا أَقْسِمُ.
also referenced under: Hadith 844 (Reference) & Book 35, Hadith 3 (In-Book)