Musannaf Ibn Abi Shaybah

Ibn Jurayj reports that a man from among the people of Sana'a informed him that Tawus gave a ruling regarding four sons of one father, one of whom testified that his father had acknowledged the lineage of a slave who was among them. Tawus did not validate the acknowledgment of lineage, but instead granted the slave one-fifth of the inheritance from the wealth of the one who testified that his father had acknowledged his lineage, and the slave was set free from the wealth of the one who gave the testimony.