Sahih Bukhari 2547

Narrated Abu Huraira: Allah's Apostle 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. ..

Narrated Abu Huraira: The Prophet said, Goodness and comfort are for him who worships his Lord in a perfect manner and serves his master sincerely. ..

Narrated `Abdullah: The Prophet said, If a slave serves his Saiyid (i.e. master) sincerely and worships his Lord (Allah) perfectly, he will get a double reward. ..

Narrated Abu Musa: The Prophet 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. ..

Narrated Abu Huraira: The Prophet said, You should not say, 'Feed your lord (Rabbaka), help your lord in performing ablution, or give water to your lord, but should say, 'my master (e.g. Feed your master instead of lord etc.) (Saiyidi), or my..

Narrated Ibn `Umar: The Prophet said, If one manumits his share of a common slave (Abd), and he has money sufficient to free the remaining portion of the price of the slave (justly estimated), then he should free the slave completely by paying..