Musnad Ahmad 1178:1

Hassan narrated to us, he said: Ibn Lahi'ah narrated to us, he said: Zabban narrated to us, from Sahl, from his father, that he heard Umm al-Darda' saying: I came out of the bathhouse and the Messenger of Allah (peace and blessings of Allah be upon him) met me. He said: "From where, O Umm al-Darda'?" She said: "From the bathhouse." He said: "By the One in Whose hand is my soul, there is no woman who takes off her clothes in any house other than the houses of her mothers, except that she has torn every veil between her and the Most Merciful."