Yahya related to me from Malik from Ibn Shihab from Urwa ibn az-Zubayr from A'isha, the wife of the Prophet, may Allah bless him andgrant him peace, that the Messenger of Allah, may Allah bless him andgrant him peace, used to pray eleven rakas in the night, making themodd by a single one, and when he had finished he lay down on his rightside.
App reference: Book 7, Hadith 8
USC-MSA web (English) reference: Book 7, Hadith 8
Arabic reference: Book 7, Hadith 262