"And also marry the Salihun (pious, fit and capable ones) of your (male) slaves and maid-servants (female slaves)..." (V.24:32)
And Allah said, "A slave (disbeliever) under the possession of another" (V.16:75) "... They both found her lord (i.e., her husband) at the door..." (V.12:25) "... believing girls [from among those (slaves) whom you right hands possess]..." (V.4:25)
And the Prophet ﷺ said, "Get up for your master."
Allah says: "...Mention me to your lord (i.e., your king so as to get me out of the prison)..." (V.12:42)
(The Prophet ﷺ said), "And who is your master?"(1)
حَدَّثَنَا مُحَمَّدُ بْنُ الْعَلاَءِ، حَدَّثَنَا أَبُو أُسَامَةَ، عَنْ بُرَيْدٍ، عَنْ أَبِي بُرْدَةَ، عَنْ أَبِي مُوسَى ـ رضى الله عنه ـ عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ .
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."