Musnad Ahmad 1153:1098

'Affan narrated to us, Sakhr bin Juwayriyah narrated to us, Isma'il al-Makki narrated to us, Abu Khalaf, the freed slave of Banu Jumah, narrated to me that he entered with 'Ubayd bin 'Umayr upon the Mother of the Believers, 'Aishah, and he mentioned its meaning.