Language:
كتاب الأدب
78  
Good Manners and Form (Al-Adab)
(105)
Chapter: The most beloved names to Allah 'Azza wa Jall
(105)
باب أَحَبِّ الأَسْمَاءِ إِلَى اللَّهِ عَزَّ وَجَلَّ
Sahih al-Bukhari 6186

Narrated Jabir:

A boy was born for a man among us, and the man named him Al-Qasim. We said to him, "We will not call you Abu-l-Qasim, nor will we respect you for that." The Prophet (ﷺ) was informed about that, and he said, "Name your son `Abdur-Rahman."

حَدَّثَنَا صَدَقَةُ بْنُ الْفَضْلِ، أَخْبَرَنَا ابْنُ عُيَيْنَةَ، حَدَّثَنَا ابْنُ الْمُنْكَدِرِ، عَنْ جَابِرٍ ـ رضى الله عنه ـ قَالَ وُلِدَ لِرَجُلٍ مِنَّا غُلاَمٌ فَسَمَّاهُ الْقَاسِمَ فَقُلْنَا لاَ نَكْنِيكَ أَبَا الْقَاسِمِ وَلاَ كَرَامَةَ‏.‏ فَأَخْبَرَ النَّبِيَّ صلى الله عليه وسلم فَقَالَ ‏ "‏ سَمِّ ابْنَكَ عَبْدَ الرَّحْمَنِ ‏"‏‏.‏
Reference : Sahih al-Bukhari 6186
In-book reference : Book 78, Hadith 210
USC-MSA web (English) reference : Vol. 8, Book 73, Hadith 205
  (deprecated numbering scheme)