Sahih Muslim 3796
صحيح مسلم#3796SahihAbu Huraira (Allah be pleased with him) reported Allah's Messenger (may peace benpon him) as saying:He who emancipates a slave, Allah will set free from Hell every limb (of his body) for every limb of his (slave's) body, even his private parts
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 20:26