Musnad Ahmad 1153:2309

Ya'qub narrated to us, my father narrated to us, from Salih, who said: Ibn Shihab informed me, from 'Urwah ibn al-Zubayr, that 'Aishah said: By Allah, I have seen the Messenger of Allah (may Allah bless him and grant him peace) standing at the door of my chamber while the Abyssinians were playing in the mosque. The Messenger of Allah (may Allah bless him and grant him peace) would screen me with his cloak so that I could look at their play. He would then stand for my sake until I was the one who turned away. So, estimate the measure of a young girl, eager for amusement.