Musnad Abu Ya'la al-Mawsili 150:199

Suwayd ibn Sa'id narrated to us, Sufyan narrated to us, from Dawud ibn Shabur, from 'Umar ibn 'Abdullah ibn 'Urwah, from his grandfather 'Urwah ibn al-Zubayr, from 'Aishah, that she narrated from the Messenger of Allah (may Allah bless him and grant him peace) regarding Abu Zar' and Umm Zar'. And she mentioned the poetry of Abu Zar' regarding Umm Zar'.