It is narrated from Nafi‘ (may Allah have mercy on him) that two men met Ibn ‘Umar (may Allah be pleased with them both) at the place of Abwa’ and said:“We have seen so-and-so (Ibn al-Zubayr) selling ummahat al-awlad (slave women who have borne children to their masters).”Ibn ‘Umar (may Allah be pleased with them both) said:“Do you know Abu Hafs (i.e., ‘Umar)? Indeed, he gave a verdict regarding ummahat al-awlad that it is neither permissible to sell them nor to give them as a gift. The owner may benefit from them, and when he dies, they become free.”