The Book of Oaths
27/11. Chapter:
The reward of a slave who is sincere towards his master and worships Allah properly
Sahih Muslim
وَحَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، وَأَبُو كُرَيْبٍ قَالاَ حَدَّثَنَا أَبُو مُعَاوِيَةَ، عَنِ الأَعْمَشِ، عَنْ أَبِي صَالِحٍ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " إِذَا أَدَّى الْعَبْدُ حَقَّ اللَّهِ وَحَقَّ مَوَالِيهِ كَانَ لَهُ أَجْرَانِ " . قَالَ فَحَدَّثْتُهَا كَعْبًا فَقَالَ كَعْبٌ لَيْسَ عَلَيْهِ حِسَابٌ وَلاَ عَلَى مُؤْمِنٍ مُزْهِدٍ .
Abu Huraira reported Allah's Messenger (ﷺ) as saying: When a slave fulfils obligation of Allah and obligation of his master, he has two rewards for him. I narrated this to Ka'b, and Ka'b said: (Such a slave) has no accountability, nor has a poor believer.
Reference : Sahih Muslim 1666aIn-book reference : Book 27, Hadith 69USC-MSA web (English) reference : Book 15, Hadith 4100