Sulayman bin Yasar (may Allah have mercy on him) says that Nufay' was the mukatab (contracted-to-be-freed) slave of Sayyidah Umm Salamah (may Allah be pleased with her), and he had a free woman as his wife. He gave her two divorces and then intended to take her back. The pure wives (may Allah be pleased with them) said: Go and ask Sayyiduna Uthman bin Affan (may Allah be pleased with him). He met Sayyiduna Uthman (may Allah be pleased with him) at the steps of the House of Allah while he was holding the hand of Sayyiduna Zayd bin Thabit (may Allah be pleased with him). Nufay' asked them both (may Allah be pleased with them both), and they hastened to say: She has become unlawful for you, she has become unlawful for you.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الرجعة / 15158