Sahih Bukhari
Manumission of Slaves
Volume: 003 / Book Number: 046 / Hadith Number: 693
Narrated Abu Huraira:
The Prophet said, "Whoever frees a Muslim slave, Allah will save all the parts of his body from the (Hell) Fire as he has freed the body-parts of the slave." Said bin Marjana said that he narrated that Hadith to 'Ali bin Al-Husain and he freed his slave for whom 'Abdullah bin Ja'far had offered him ten thousand Dirhams or one-thousand Dinars.