It is narrated from Hazrat Nafi that two persons from among the people of Iraq asked Hazrat Ibn Umar (may Allah be pleased with them both) at the place of Al-Abwa. They said, "We left Ibn Zubair in Makkah in the condition that he was selling Umm Walad (a slave woman who has borne a child to her master)." Hazrat Ibn Umar (may Allah be pleased with them both) said, "But do you know Hazrat Umar (may Allah be pleased with him)? He (may Allah be pleased with him) said: 'A slave woman who bears a child to her master is a source of benefit for him during his lifetime, and after his death, she is free. And whoever has intercourse with a slave woman and she miscarries, and the child is his, then the burden of causing the miscarriage is upon him.'"