Messenger of Allah ﷺ said, "If a slave is honest and faithful to his master and worships his Lord (Allah) in a perfect manner, he will get a double reward."  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ الْعَبْدُ إِذَا نَصَحَ سَيِّدَهُ وَأَحْسَنَ عِبَادَةَ رَبِّهِ كَانَ لَهُ أَجْرُهُ مَرَّتَيْنِ  

Messenger of Allah ﷺ said, "A pious slave gets a double reward." Abu Huraira added: By Him in Whose Hands my soul is but for Jihad (i.e. holy battles), Hajj, and my duty to serve my mother, I would have loved to die as a slave.  

قَالَ رَسُولُ اللَّهِ ﷺ لِلْعَبْدِ الْمَمْلُوكِ الصَّالِحِ أَجْرَانِ وَالَّذِي نَفْسِي بِيَدِهِ لَوْلاَ الْجِهَادُ فِي سَبِيلِ اللَّهِ وَالْحَجُّ وَبِرُّ أُمِّي لأَحْبَبْتُ أَنْ أَمُوتَ وَأَنَا مَمْلُوكٌ  

The Prophet ﷺ said, "The Mamluk (slave) who worships his Lord in a perfect manner, and is dutiful, sincere and obedient to his Saiyid (master), will get a double reward."  

عَنِ النَّبِيِّ ﷺ قَالَ الْمَمْلُوكُ الَّذِي يُحْسِنُ عِبَادَةَ رَبِّهِ وَيُؤَدِّي إِلَى سَيِّدِهِ الَّذِي لَهُ عَلَيْهِ مِنَ الْحَقِّ وَالنَّصِيحَةِ وَالطَّاعَةِ لَهُ أَجْرَانِ  

Messenger of Allah ﷺ said "Three persons will have a double reward: 1. A Person from the people of the scriptures who believed in his prophet (Jesus or Moses) and then believed in the Prophet ﷺ Muhammad (i .e. has embraced Islam). 2. A slave who discharges his duties to Allah and his master. 3. A master of a woman-slave who teaches her good manners and educates her in the best possible way (the religion) and manumits her and then marries her."  

رَسُولُ اللَّهِ ﷺ: «ثَلاَثَةٌ لَهُمْ أَجْرَانِ: (١) رَجُلٌ مِنْ أَهْلِ الْكِتَابِ آمَنَ بِنَبِيِّهِ وَآمَنَ بِمُحَمَّدٍ ﷺ، (٢) وَالْعَبْدُ الْمَمْلُوكُ إِذَا أَدَّى حَقَّ اللَّهِ وَحَقَّ مَوَالِيهِ، (٣) وَرَجُلٌ كَانَتْ عِنْدَهُ أَمَةٌ (يَطَؤُهَا) فَأَدَّبَهَا فَأَحْسَنَ تَأْدِيبَهَا وَعَلَّمَهَا فَأَحْسَنَ تَعْلِيمَهَا ثُمَّ أَعْتَقَهَا فَتَزَوَّجَهَا فَلَهُ أَجْرَانِ۔»  

The Prophet ﷺ said, "Three persons will get their reward twice. (One is) a person who has a slave girl and he educates her properly and teaches her good manners properly (without violence) and then manumits and marries her. Such a person will get a double reward. (Another is) a believer from the people of the scriptures who has been a true believer and then he believes in the Prophet ﷺ (Muhammad). Such a person will get a double reward. (The third is) a slave who observes Allah's Rights and Obligations and is sincere to his master."  

عَنِ النَّبِيِّ ﷺ قَالَ ثَلاَثَةٌ يُؤْتَوْنَ أَجْرَهُمْ مَرَّتَيْنِ الرَّجُلُ تَكُونُ لَهُ الأَمَةُ فَيُعَلِّمُهَا فَيُحْسِنُ تَعْلِيمَهَا وَيُؤَدِّبُهَا فَيُحْسِنُ أَدَبَهَا ثُمَّ يُعْتِقُهَا فَيَتَزَوَّجُهَا فَلَهُ أَجْرَانِ وَمُؤْمِنُ أَهْلِ الْكِتَابِ الَّذِي كَانَ مُؤْمِنًا ثُمَّ آمَنَ بِالنَّبِيِّ ﷺ فَلَهُ أَجْرَانِ وَالْعَبْدُ الَّذِي يُؤَدِّي حَقَّ اللَّهِ وَيَنْصَحُ لِسَيِّدِهِ ثُمَّ قَالَ الشَّعْبِيُّ وَأَعْطَيْتُكَهَا بِغَيْرِ شَىْءٍ وَقَدْ كَانَ الرَّجُلُ يَرْحَلُ فِي أَهْوَنَ مِنْهَا إِلَى الْمَدِينَةِ  

Messenger of Allah ﷺ said, "If a person teaches his slave girl good manners properly, educates her properly, and then manumits and marries her, he will get a double reward. And if a man believes in Jesus and then believes in me, he will get a double reward. And if a slave fears his Lord (i.e. Allah) and obeys his masters, he too will get a double reward."  

عَنْ أَبِي مُوسَى الأَشْعَرِيِّ ؓ قَالَ قَالَ رَسُولُ اللَّهِ ﷺ إِذَا أَدَّبَ الرَّجُلُ أَمَتَهُ فَأَحْسَنَ تَأْدِيبَهَا وَعَلَّمَهَا فَأَحْسَنَ تَعْلِيمَهَا ثُمَّ أَعْتَقَهَا فَتَزَوَّجَهَا كَانَ لَهُ أَجْرَانِ وَإِذَا آمَنَ بِعِيسَى ثُمَّ آمَنَ بِي فَلَهُ أَجْرَانِ وَالْعَبْدُ إِذَا اتَّقَى رَبَّهُ وَأَطَاعَ مَوَالِيَهُ فَلَهُ أَجْرَانِ  

Messenger of Allah ﷺ said, any man who has a slave girl whom he educates properly, teaches good manners, manumits and marries her, will get a double reward And if any man of the people of the Scriptures believes in his own prophet and then believes in me too, he will (also) get a double reward And any slave who fulfills his duty to his master and to his Lord, will (also) get a double reward."  

قَالَ رَسُولُ اللَّهِ ﷺ أَيُّمَا رَجُلٍ كَانَتْ عِنْدَهُ وَلِيدَةٌ فَعَلَّمَهَا فَأَحْسَنَ تَعْلِيمَهَا وَأَدَّبَهَا فَأَحْسَنَ تَأْدِيبَهَا ثُمَّ أَعْتَقَهَا وَتَزَوَّجَهَا فَلَهُ أَجْرَانِ وَأَيُّمَا رَجُلٍ مِنْ أَهْلِ الْكِتَابِ آمَنَ بِنَبِيِّهِ وَآمَنَ بِي فَلَهُ أَجْرَانِ وَأَيُّمَا مَمْلُوكٍ أَدَّى حَقَّ مَوَالِيهِ وَحَقَّ رَبِّهِ فَلَهُ أَجْرَانِ قَالَ الشَّعْبِيُّ خُذْهَا بِغَيْرِ شَىْءٍ قَدْ كَانَ الرَّجُلُ يَرْحَلُ فِيمَا دُونَهُ إِلَى الْمَدِينَةِ وَقَالَ أَبُو بَكْرٍ عَنْ أَبِي حَصِينٍ عَنْ أَبِي بُرْدَةَ عَنْ أَبِيهِ عَنِ النَّبِيِّ ﷺ أَعْتَقَهَا ثُمَّ أَصْدَقَهَا