Sahih Muslim #4332 · The Book of Oaths

Sahih MuslimThis hadith has been narrated on the authority of Shu'ba with the same chain of transmitters
Sahih Muslim · Book 27 · The Book of Oaths
Sahih Muslim · كتاب 27 · كتاب الأيمان
" He who emancipates a portion in a slave, he should (secure full) freedom for him from his property."
وَحَدَّثَنَا عُبَيْدُ اللَّهِ بْنُ مُعَاذٍ، حَدَّثَنَا أَبِي، حَدَّثَنَا شُعْبَةُ، بِهَذَا الإِسْنَادِ قَالَ ‏
"‏ مَنْ أَعْتَقَ شَقِيصًا مِنْ مَمْلُوكٍ فَهُوَ حُرٌّ مِنْ مَالِهِ ‏"‏ ‏.‏
Reference : Sahih Muslim 4332In-book reference : Book 27, Hadith 79