Musannaf Ibn Abi Shaybah 17633 — A man who commits adultery

Yahya bin Sa'id said: Umar bin Abd al-Aziz was once asked: "If a woman falls into sin with a man, and then afterwards good begins to appear in her deeds and conduct, may she marry that man?" Umar bin Abd al-Aziz said: "Do you think that I would forbid it?!"