Associating with one who is defiled, and what is permitted - Section 3 Mishkat al-Masabih 471
Translation
Al-Hakam b. ‘Amr said that God’s messenger forbade that a man should perform ablution with the water left over by his wife after purifying herself. Abu Dawud, Ibn Majah and Tirmidhi transmitted it. Tirmidhi adding “Or he said, “With her leavings’.” He said that this is a hasan sahih tradition.