A man among us begot a boy whom he named Al-Qasim. The people said (to him), "We will not call you Abul-l-Qasim, nor will we please you by calling you so." The man came to the Prophet (ﷺ) and mentioned that to him. The Prophet (ﷺ) said to him, "Name your son `Abdur-Rahman."
Sahih al-Bukhari Book 78, Hadith 213
← Previous Hadith Abu-l-Qasim (The Prophet) said, "Name yourselves by my name, but do not call yourselves by my Kuniya."

Sahih al-Bukhari Book 78, Hadith 212 Next Hadith → That his father (Hazn bin Wahb) went to the Prophet (ﷺ) and the Prophet (ﷺ) asked (him), "What is your name?" He replied, "My name is Hazn." The Prophet (ﷺ) said, "You are Sahl." Hazn said, "I will not change the name with which my father has named me." Ibn Al-Musaiyab added: We have had roughness (in character) ever since. Narrated Al-Musaiyab:

on the authority of his father similarly as above (i.e., 209).

Sahih al-Bukhari Book 78, Hadith 214