(11) باب ثَوَابِ الْعَبْدِ وَأَجْرِهِ إِذَا نَصَحَ لِسَيِّدِهِ وَأَحْسَنَ عِبَادَةَ اللَّهِ
Abu Huraira reported Allah's Messenger (ﷺ) as saying:
It is good for a slave that he worships Allah well, and serves his master (well). It is good for him. (ID)
Reference (ID): Sahih Muslim 1667 (ID)
In-book reference (ID): Book 27, Hadith 72 (ID)
USC-MSA web (English) reference(deprecated numbering scheme): Book 15, Hadith 4101 (ID)