Hadith 8:183
'Aishah (May Allah be pleased with her) reported:
The Prophet (ﷺ) 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))