(4) باب فِيمَنْ أَعْتَقَ نَصِيبًا لَهُ مِنْ مَمْلُوكٍ
Narrated AbuHurayrah:
A man emancipated his share in a slave. The Prophet (ﷺ) allowed his (full) emancipation, and required him to pay the rest of his price.
Reference: Sunan Abi Dawud 3934
In-book reference: Book 31, Hadith 9
English translation: Book 30, Hadith 3923