Sunan Abi Dawud 3945
سنن أبي داود#3945SahihThe tradition mentioned above has also been narrated by Ibn 'Umar through a different chain of transmitters to the same effect as mentioned by Malik. In this version there is no mention of the words "otherwise he will be emancipated to the extent of the first man's share." His version ends "and the slave be thus emancipated," to the same effect as he (Malik) mentioned
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Zubair Ali ZaiSahih Bukhari (2503)
In-book reference: 31:20