Bulugh al-Maram #456
كتاب الصلاة
وَعَنْ عَائِشَةَ رَضِيَ اَللَّهُ عَنْهَا قَالَتْ: «[مَا] كَانَ رَسُولُ اَللَّهِ - صلى الله عليه وسلم -يَزِيدُ فِي رَمَضَانَ وَلَا فِي غَيْرِهِ عَلَى إِحْدَى عَشْرَةَ رَكْعَةً, يُصَلِّي أَرْبَعًا, فَلَا تَسْأَلْ عَنْ حُسْنِهِنَّ وَطُولِهِنَّ, ثُمَّ يُصَلِّي أَرْبَعًا, فَلَا تَسْأَلْ عَنْ حُسْنِهِنَّ وَطُولِهِنَّ, ثُمَّ يُصَلِّي ثَلَاثًا. قَالَتْ عَائِشَةُ, فَقُلْتُ: يَا رَسُولَ اَللَّهِ, أَتَنَامُ قَبْلَ أَنْ تُوتِرَ? قَالَ:»يَا عَائِشَةُ, إِنَّ عَيْنَيَّ تَنَامَانِ وَلَا يَنَامُ قَلْبِي«.» مُتَّفَقٌ عَلَيْهِ.
Narrated 'Aishah (RA):
Allah's Messenger (ﷺ) did not offer more than eleven (voluntary) Rak'at during Ramadan nor during other than Ramadan. He offered four Rak'at - Do not ask about their beauty and length! (It is beyond description or imitation]. Again he would pray four Rak'at - Do not ask about their beauty and length! . Then he would pray three (Rak'at of Witr). 'Aishah (RA) said: “I said, O Allah's Messenger will you sleep before you pray Witr?” He said, “O 'Aishah my eyes sleep, but my heart does not sleep.”