Maliks Muwatta Book 007, Hadith Number 002.

Section : Concerning Prayer in the Night.

Yahya related to me from Malik from Abu'nNadr, the mawla of Umar ibn 'Ubaydullah, from Abu Salama ibn Abd ar-Rahman that A'isha, the wife of the Prophet, may Allah bless him and grant him peace, said, "I was sleeping in front of the Messenger of Allah, may Allah bless him and grant him peace, and my feet were in his qibla. When he prostrated, he nudged me and I pulled up my feet, and when he stood up I spread them out." She added, "There were no lamps in the house at that time."