Musannaf Ibn Abi Shayba 1:541

Yazid ibn Harun narrated to us, he said: Sa'id ibn Abi 'Aruba informed us, from Qatada, from Salih Abu al-Khalil, from 'Abdullah ibn al-Harith ibn Nawfal, from Umm Hakim bint al-Zubayr, that the Messenger of Allah (may Allah bless him and grant him peace) entered upon Duba'a. He then ate from a shoulder [of meat] while with her, then went out to the prayer and did not perform ablution.