Musannaf Ibn Abi Shayba 9:1738

Yazid ibn Harun narrated to us, from al-Awwam, from Ali ibn Mudrik, from Abu Zur'ah, from Abu Hurayrah, who said: Faith is a garment (or a covering). Whoever commits adultery, faith departs from him. Whoever blames himself and returns (to repentance), faith returns to him.