Book 11: The Book of Jihad

Abu Hurairah (May Allah be pleased with him) reported: The Messenger of Allah (ﷺ) said, "He who sets free a Muslim slave, Allah will deliver from the fire of Hell every limb of his body in return for every limb of the slave's body, even his private parts."

[Al-Bukhari and Muslim].

Abu Dharr (May Allah be pleased with him) reported: I asked the Messenger of Allah (ﷺ), "Which deed is most excellent?" He replied, "Faith in Allah and Jihad in His path." I then asked, "Which slaves are most excellent (to set free)?" He replied, "Those who are held in high esteem by their people and whose value is higher."

[Al- Bukhari and Muslim].