Musannaf Ibn Abi Shaybah 18379 — A man who buys or captures a slave

It is narrated from Sayyiduna Abu al-Darda' (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) passed by a pregnant woman close to giving birth (who had been brought as a captive); she was at the door of a tent. The Prophet (peace and blessings be upon him) asked: "Whose is she?" The people said: "She belongs to so-and-so." The Prophet (peace and blessings be upon him) said: "Does he have intercourse with her?" The people said: "Yes." The Prophet (peace and blessings be upon him) said: "I was about to curse him with a curse that would go with him into his grave. How can he take service from him (the child to be born of her) when he is nourishing his hearing and sight? How can he inherit from him when that is not lawful for him?"