Language:
كتاب العتق
49  
Manumission of Slaves
(16)
Chapter: A slave who worships his Lord and he is also honest and faithful to his master
(16)
باب الْعَبْدِ إِذَا أَحْسَنَ عِبَادَةَ رَبِّهِ وَنَصَحَ سَيِّدَهُ
Sahih al-Bukhari 2549

Narrated Abu Huraira:

The Prophet (ﷺ) said, "Goodness and comfort are for him who worships his Lord in a perfect manner and serves his master sincerely."

حَدَّثَنَا إِسْحَاقُ بْنُ نَصْرٍ، حَدَّثَنَا أَبُو أُسَامَةَ، عَنِ الأَعْمَشِ، حَدَّثَنَا أَبُو صَالِحٍ، عَنْ أَبِي هُرَيْرَةَ ـ رضى الله عنه ـ قَالَ قَالَ النَّبِيُّ صلى الله عليه وسلم ‏ "‏ نِعْمَ مَا لأَحَدِهِمْ يُحْسِنُ عِبَادَةَ رَبِّهِ وَيَنْصَحُ لِسَيِّدِهِ ‏"‏‏.‏
Reference : Sahih al-Bukhari 2549
In-book reference : Book 49, Hadith 32
USC-MSA web (English) reference : Vol. 3, Book 46, Hadith 725
  (deprecated numbering scheme)