وعن عائشة رضي الله عنها، قالت‏:‏ كان النبي صلى الله عليه وسلم ، يقوم من الليل حتى تتفطر قدماه، فقلت له‏:‏ لم تصنع هذا يا رسول الله، وقد غفر لك ما تقدم من ذنبك وما تأخر‏؟‏ قال‏:‏ ‏"‏أفلا أكون عبدًا شكورًا‏"‏‏.‏ ‏(‏‏(‏متفق عليه وعن المغيرة بن شعبة نحوه، متفق عليه‏)‏‏)‏‏.‏

'Aishah (May Allah be pleased with her) reported

The Messenger of Allah (ﷺ) did not observe more than eleven Rak'ah (of Tahajjud prayers), be in Ramadan or any other month. First of all he would perform four Rak'ah. Ask not about their excellence and their length. He (ﷺ) would then perform four more Rak'ah; and do not ask about their excellence and their length. Then he would perform three Rak'ah (Witr prayer). ('Aishah (May Allah be pleased with her) added) I submitted: "O Messenger of Allah! Do you sleep before performing the Witr prayer?" He (ﷺ) said, "O 'Aishah! My eyes sleep but my heart does not sleep."[Al-Bukhari and Muslim].