Musnad Ahmad 1153:1911

Ibn Numayr narrated to us, al-A‘mash narrated to us, from Muslim, from Masruq, from ‘Aishah; and he narrated it to us from al-A‘mash, from Ibrahim, from al-Aswad, from ‘Aishah, who said: It reached her that some people say: "The dog, the donkey, and the woman break the prayer." ‘Aishah said: "You have equated us with dogs and donkeys. I have indeed seen the Messenger of Allah, peace and blessings of Allah be upon him, praying while facing the bed, and I was upon it, between him and the Qiblah. When I had a need, I would slip away from the direction of the foot of the bed, disliking to face him."