Musannaf Ibn Abi Shaybah

Hazrat Humaid (may Allah have mercy on him) narrates that Hazrat Anas (may Allah be pleased with him) had a doubt regarding his child, so he ordered for a physiognomist to be called.

Hazrat Abdullah bin Ubaid bin Umair (may Allah have mercy on him) narrates that Hazrat Abdur Rahman bin Auf (may Allah be pleased with him) sold one of his slave women before being certain that her womb was empty. Later, it became apparent to the buyer that she was pregnant. This case was presented before Hazrat Umar (may Allah be pleased with him). Hazrat Umar (may Allah be pleased with him) asked Hazrat Abdur Rahman bin Auf (may Allah be pleased with him), "Did you have intercourse with her?" He admitted it. Then he asked, "Did you sell her without being certain that her womb was clear?" He admitted it. Hazrat Umar (may Allah be pleased with him) said, "You should not have done so." Then he called for experts in lineage, who examined the child and determined that the child belonged to Hazrat Abdur Rahman bin Auf (may Allah be pleased with him). Afterwards, Hazrat Abdur Rahman (may Allah be pleased with him) had many children from that slave woman, and no one considered it blameworthy.

Hazrat Usman bin Aswad (may Allah have mercy on him) narrates that a man doubted the lineage of his child, so Hazrat Ata (may Allah have mercy on him) said to him that he should be instructed to consider the child as his own. Because Hazrat Umar bin Khattab (may Allah be pleased with him) has said regarding this matter that whoever admits to having had intercourse with a slave woman, we will attribute the child to him. Then I asked Hazrat Ikrimah bin Khalid (may Allah have mercy on him) about this matter, and he also said that he should be instructed to consider the child as his own.

Hazrat Umar bin Khattab (may Allah be pleased with him) said: Whether you consider these slave women to be chaste or not, if any of these women gives birth to a child on the bed of any one of you, then that child will belong to him.