Wedlock, Marriage (Nikaah)
Ṣaḥīḥ al-Bukhārī 5083
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
ayyumā rajulin kānat ʿindah walīdatun faʿallamahā fa-aḥsana taʿlīmahā, wa-addabahā fa-aḥsana taʾdībahā, thumma aʿtaqahā watazawwajahā falah ajrāni, wa-ayyumā rajulin min ahli al-kitābi āmana binabiyyihi wamana bī falah ajrāni, wa-ayyumā mamlūkin addā ḥaqqa mawālīhi waḥaqqa rabbihi falah ajrāni
Transliteration generated from the Arabic vowel marks
The full narration
Narrated Abu Burda's father:Allah's Messenger (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
Source
Ṣaḥīḥ al-Bukhārī · 5083