Hadith 1173

'Aishah (May Allah be pleased with her) reported: The Prophet (PBUH) would sleep during the early part of night and stand in Salat during the latter part.

[Al-Bukhari and Muslim].

- وعنها أن النبي صلى الله عليه وسلم، كان ينام أول الليل، ويقوم آخره فيصلي‏.‏ ‏(‏‏(‏متفق عليه‏)‏‏)‏ ‏.‏

Reference: 1711630
In-book reference: Book 8, Hadith 1173