5171Abu DawoodSahih (Al-Albani)حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ الْقَعْنَبِيُّ، عَنْ مَالِكٍ، عَنْ نَافِعٍ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ إِنَّ الْعَبْدَ إِذَا نَصَحَ لِسَيِّدِهِ وَأَحْسَنَ عِبَادَةَ اللَّهِ فَلَهُ أَجْرُهُ مَرَّتَيْنِ " "Abd Allah b. "Umar reported the Messenger of Allah (ﷺ) as saying:when a slave acts sincerely towards his master and worship Allah well, he will have a double reward.Reference: Sunan Abi Dawud 5169 In-book : Book 43, Hadith 397 English translation : Book 42, Hadith 5150