Hadith 2514
It is narrated from Sayyiduna Abu Darda’ (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) saw a pregnant woman lying at the entrance of a tent and said: “Perhaps her owner has had intercourse with her?” The people replied: Yes. The Prophet (peace and blessings be upon him) said: “I intended to invoke such a curse upon him that would remain with him until the grave. How can her child be his heir when she is not lawful for him, and how can he take service from her when she is not lawful for him?”