Ibn Umar (Allah be pleased with them) reported that Allah's Messenger (may peace he upon him) forbade the selling and making a gift of the right of inheritance of a slave. Imam Muslim said
All the persons depend upon Abdullah b. Dinar in regard to this hadith.
This hadith has been narrated on the authority of Ibn 'Umar (Allah be pleased with them) through another chain of transmitters but with this change that in tba hadith narrated by al-Thaqafi from Ubaidullah there is only a mention of selling (or right of inheritance, al-Wala' ) but not that of making a gift.