Volume 3, Book 46, Number 724:
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.
Volume 3 – 580 / 1700
SAHIH BUKHARI VOLUME 3 > BOOK 46: MANUMISSION OF SLAVES