Ash-Shama'il Al-Muhammadiyah 270
'A’isha said (may Allah be well pleased with her):
“Allah’s Messenger (Allah bless him and give him peace) used to perform eleven cycles of ritual prayer during the night, making one of them odd-numbered [witr], and when he had finished, he would recline on his right side.”
حَدَّثَنَا إِسْحَاقُ بْنُ مُوسَى، قَالَ‏:‏ حَدَّثَنَا مَعْنٌ، قَالَ‏:‏ حَدَّثَنَا مَالِكٌ، عَنِ ابْنِ شِهَابٍ، عَنْ عُرْوَةَ، عَنْ عَائِشَةَ‏:‏ أَنَّ رَسُولَ اللهِ صلى الله عليه وسلم، كَانَ يُصَلِّي مِنَ اللَّيْلِ إِحْدَى عَشْرَةَ رَكْعَةً، يُوتِرُ مِنْهَا بِوَاحِدَةٍ، فَإِذَا فَرَغَ مِنْهَا، اضْطَجَعَ عَلَى شِقِّهِ الأَيْمَنِ‏.‏