حَدَّثَنَا يَحْيَى عَنْ عُبَيْدِ اللَّهِ وَمُحَمَّدُ بْنُ عُبَيْدٍ قَالَ حَدَّثَنَا عُبَيْدُ اللَّهِ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ عَنْ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ الْعَبْدُ إِذَا أَحْسَنَ عِبَادَةَ رَبِّهِ تَبَارَكَ وَتَعَالَى وَنَصَحَ لِسَيِّدِهِ كَانَ لَهُ الْأَجْرُ مَرَّتَيْنِ
مسند امام احمد بن حنبل · Hadith 4673
It was narrated from lbn 'Umar from the Prophet (PBUH) "If a slave worships his Lord properly and is sincere towards his master, he will have a twofold reward."
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020