Saeed bin Jubair (may Allah have mercy on him) said: A slave who is set free after death will be freed from the entire wealth. The narrator said: Imam Abu Muhammad Darimi (may Allah have mercy on him) was asked: What is your opinion? He said: He will be freed from one third of the wealth.
Hadith Referenceسنن دارمي / من كتاب الوصايا / 3311
Hadith Takhrijاس اثر کی سند صحیح ہے۔ ابوعوانہ: وضاح یشکری، اور ابوبشر: جعفر بن ایاس ہیں۔ دیکھئے: [ابن أبى شيبه 1915] ، [ابن منصور 474]
Brief Explanation
(The Explanation of Ahadith 3305 to 3311)
The last two opinions are that the mudabbar will be freed from the entire estate, while all the remaining opinions are that he will be freed from one-third of the estate.
Imam Darimi rahimahullah has also given preference to this opinion.
The meaning is that if a person leaves behind wealth and a slave whom he has made mudabbar, and if the value of the slave is equal to one-third of the estate, then he will be freed; if it is more than that, then he will be freed only to the extent of one-third, and the remaining two-thirds will be distributed among the heirs.