Sahih Muslim 3774
صحيح مسلم#3774SahihThis hadith has been narrated on the authority of Sa'id b. Abu 'Aruba with the same chain of transmitters but with the addition:" If he (one of the joint owners emancipating the slave) has not (enough) money (to secure freedom for the other half) a fair price for the slave should be fixed, and he will be required to work to pay for his freedom, but must not be over-burdened
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: 20:5