The tradition mentioned above has also been narrated by Ibn Umar from the Prophet ﷺ. The narrator Ayyub said: I do not know whether the following words are part of the tradition of the Prophet ﷺ or Nafi told them himself: "Otherwise he will be emancipated to the extent of the first man's share. "
Hadith Referenceسنن ابي داود / كتاب العتق / 3942
Hadith Gradingالألبانی:صحيح الإسناد | زبیر علی زئی:صحيح بخاري (2524) صحيح مسلم (1501)
Hadith Takhrij« انظر ما قبلہ، (تحفة الأشراف: 7511) (صحیح الإسناد) »