Harqus al-Dabbi (may Allah have mercy on him) said: A woman came to Sayyiduna Ali (may Allah be pleased with him) and said: My husband has had intercourse with my slave-girl. Her husband said: She speaks the truth; she and her wealth are lawful for me. Sayyiduna Ali (may Allah be pleased with him) said: Go, and do not ever do it again.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحدود / 17082