Jami` at-Tirmidhi Book 43, Hadith 115
that the Prophet (ﷺ) prohibited that one use his name and his Kunyah; naming themselves Muhammad Abul-Qasim.
from his father that the Messenger of Allah (ﷺ) said: "I have some names: I am Muhammad, I am Ahmad, I am Al-Mahi, the one by whom Allah wipes out disbelief, I am Al-Hasir, the one whom the people are gathered at his feet, and I am Al-'Aqib, the one after whom there is no Prophet."
that the Messenger of Allah (ﷺ): "When you name yourself after me, then do not use my Kunyah."