Musnad Abu Ya'la al-Mawsili 150:42

Muhammad ibn 'Abbad al-Makki narrated to us, Sufyan narrated to us, he said: I heard it from al-Zuhri—and by Allah, just as I informed you—he said: 'Urwah narrated to me, from 'Aishah, that the Prophet (peace and blessings of Allah be upon him) used to perform ghusl (ritual bath) from a qadah (vessel), which is a faraq. She said: And I and he used to perform ghusl from a single vessel.