Narrated Aishah, Ummul Muminin: A woman came to the Messenger of Allah ﷺ and said: Messenger of Allah! I have given birth to a boy, and call him Muhammad and Abul Qasim as kunyah (surname), but I have been told that you disapproved of that. He replied: What is it which has made my name lawful and my kunyah unlawful, or what is it which has made my kunyah unlawful and my name lawful?
Hadith Referenceسنن ابي داود / كتاب الأدب / 4968
Hadith Gradingالألبانی:ضعيف | زبیر علی زئی:ضعيف, إسناده ضعيف, محمد بن عمران الحجبي مستور (تق: 6199), انوار الصحيفه، صفحه نمبر 173
Hadith Takhrij« تفرد بہ أبو داود، (تحفة الأشراف: 17856)، وقد أخرجہ: مسند احمد (6/135، 209) (ضعیف) »
1؎ : There is a difference of opinion among the scholars regarding this matter. Some have said that the prohibition pertains only to the blessed lifetime of the Prophet (sallallahu alayhi wa sallam); after that, if someone keeps both his name and his kunyah (patronymic), there is no objection. Others have said that it is prohibited to keep both the name and the kunyah together. Some are of the opinion that the prohibition pertains only to the kunyah.