Musannaf Ibn Abi Shayba 9:883

Jarir narrated to us, from Shu'bah, from Abu Na'amah, who said: Sa'id ibn Jubayr was asked, and I was listening, about a man who committed adultery with a woman: "May he marry her?" He said: "He is more entitled to her. Its beginning is illicit intercourse (sifah), and its end is marriage (nikah). What made her lawful for him is his wealth."