Salih bin Hayy narrates: A man from Khurasan said to Imam Sha’bi: Among us it is said: When a person frees his umm walad and then marries her, his example is like that of a person who rides his sacrificial animal. So Imam Sha’bi said: Sayyiduna Abu Burdah (may Allah be pleased with him) narrated to me from Sayyiduna Abu Musa Ash’ari (may Allah be pleased with him) that the Prophet Muhammad (peace and blessings be upon him) said:“When a person brings up his slave girl well and gives her a good upbringing, teaches her well and gives her a good education, then frees her and marries her, that person will have a double reward. And whoever believes in Sayyiduna ‘Isa (Jesus, peace be upon him) and then believes in me, he will also have a double reward. And the slave who fears his Lord and obeys his master, he will also have a double reward.”