Abu Dawud Book 24, Hadith Number 3941.

Chapter : Possession of a slave who is a relative to the master and is within the prohibited degrees.

Narated By N/A : A similar tradition has also been transmitted by Jabir b. Zaid and al-Hasan through a different chain of narrators.

Abu Dawud said: The narrator Sa’id retained the tradition more carefully than Hammad.