´It was narrated from Ibn 'Abbas tht the Prophet said:` "The Mukatab is free to the extent that the has paid off (toward buying his freedom); he Hadd punishment should be carried out on him proportionate to the amount he has paid off (toward buying his freedom); and he inherits proportionate to the amount he has paid off (toward buying his freedom)."
Related hadith on this topic
Explanation & Benefits
Shaykh Umar Farooq Saeedi
Benefits and Issues:
The manner in which Islam has protected the rights of slaves is unmatched by any other nation.
If a slave has become half-free and half-slave, then half of the blood money (diyah) will be paid as for a free person, and the remaining half as for a slave.
Similarly, this ruling applies to other matters as well.
Source: Sunan Abu Dawood – Commentary by Shaykh Umar Farooq Saeedi, Page: 4582