Sahih al-Bukhari, Volume 8, Book 73, Hadith 209 (USC-MSA) ⓘ
Narrated Al-Musaiyab: That his father (Hazn bin Wahb) went to the Prophet and the Prophet asked (him), "What is your name?" He replied, "My name is Hazn." The Prophet 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).
حَدَّثَنَا إِسْحَاقُ بْنُ نَصْرٍ، حَدَّثَنَا عَبْدُ الرَّزَّاقِ، أَخْبَرَنَا مَعْمَرٌ، عَنِ الزُّهْرِيِّ، عَنِ ابْنِ الْمُسَيَّبِ، عَنْ أَبِيهِ، أَنَّ أَبَاهُ، جَاءَ إِلَى النَّبِيِّ صلى الله عليه وسلم فَقَالَ " مَا اسْمُكَ ". قَالَ حَزْنٌ. قَالَ " أَنْتَ سَهْلٌ ". قَالَ لاَ أُغَيِّرُ اسْمًا سَمَّانِيهِ أَبِي. قَالَ ابْنُ الْمُسَيَّبِ فَمَا زَالَتِ الْحُزُونَةُ فِينَا بَعْدُ. حَدَّثَنَا عَلِيُّ بْنُ عَبْدِ اللَّهِ، وَمَحْمُودٌ، قَالاَ حَدَّثَنَا عَبْدُ الرَّزَّاقِ، أَخْبَرَنَا مَعْمَرٌ، عَنِ الزُّهْرِيِّ، عَنِ ابْنِ الْمُسَيَّبِ، عَنْ أَبِيهِ، عَنْ جَدِّهِ، بِهَذَا.
also referenced under: Book 78, Hadith 214 (In-Book) & Hadith 6190 (DarusSalam)