It is narrated from Sayyiduna Abu Hurairah, may Allah be pleased with him, that the Messenger of Allah, peace and blessings be upon him, said: Whoever frees a believing slave, Allah Almighty will free every limb of his from the Fire in exchange for every limb of the slave, that is, He will free his hand in exchange for the slave’s hand, his leg for the slave’s leg, and his private part for the slave’s private part. Ali bin Husayn said: Did you hear this hadith from Sayyiduna Abu Hurairah, may Allah be pleased with him? Sa‘id said: Yes. So Ali bin Husayn said to his most active slave: Call Mutarrif. When he stood before him, he said: Go, you are free for the sake of Allah Almighty’s pleasure.