Hadith 3011 - Fighting for the Cause of Allah (Jihaad) - Sahih Al-Bukhari - صحيح البخاري - Collection of Actions, Sayings and Teachings of Prophet Muhammad (صلى الله عليه و سلم) - Kutub as-Sittah

56. Fighting for the Cause of Allah (Jihaad) - كتاب الجهاد والسير

145) Chapter: The superiority of the people of the Scriptures (Jews and Christians) who embrace Islam

Narrated Abu Burda's father:

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."

Reference: 3011
English reference: Vol. 4, Book 52, Hadith 255
In-book reference: Book 56, Hadith 220
Grade: Sahih
Read this hadith from Darussalam Collection

145) باب فَضْلِ مَنْ أَسْلَمَ مِنْ أَهْلِ الْكِتَابَيْنِ

حَدَّثَنَا عَلِيُّ بْنُ عَبْدِ اللَّهِ، حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ، حَدَّثَنَا صَالِحُ بْنُ حَىٍّ أَبُو حَسَنٍ، قَالَ سَمِعْتُ الشَّعْبِيَّ، يَقُولُ حَدَّثَنِي أَبُو بُرْدَةَ، أَنَّهُ سَمِعَ أَبَاهُ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ ‏‏‏.‏ ثُمَّ قَالَ الشَّعْبِيُّ وَأَعْطَيْتُكَهَا بِغَيْرِ شَىْءٍ وَقَدْ كَانَ الرَّجُلُ يَرْحَلُ فِي أَهْوَنَ مِنْهَا إِلَى الْمَدِينَةِ‏.‏ "‏ 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 صلى الله عليه وسلم فَلَهُ أَجْرَانِ، وَالْعَبْدُ الَّذِي يُؤَدِّي حَقَّ اللَّهِ وَيَنْصَحُ لِسَيِّدِهِ ‏"