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."
Sahih al-Bukhari Book 67, Hadith 21
← Previous Hadith The Prophet (ﷺ) said, "The best women are the riders of the camels and the righteous among the women of Quraish. They are the kindest women to their children in their childhood and the more careful women of the property of their husbands."

Sahih al-Bukhari Book 67, Hadith 20 Next Hadith → The Prophet (ﷺ) said: Abraham did not tell lies except three. (One of them was) when Abraham passed by a tyrant and (his wife) Sara was accompanying him (Abu Huraira then mentioned the whole narration and said:) (The tyrant) gave her Hajar. Sara said, "Allah saved me from the hands of the Kafir (i.e. infidel) and gave me Hajar to serve me." (Abu Huraira added:) That (Hajar) is your mother, O Banu Ma'-As-Sama' (i.e., the Arabs).

Sahih al-Bukhari Book 67, Hadith 22