Narrated Aisha: With the start of the last ten days of Ramadan, the Prophet used to tighten his waist belt (i.e. work hard) and used to pray all the night, and used to keep his family awake for the prayers.
Hadith ReferenceSahih Bukhari / The Book of Superiority of The Night of Qadr / Hadith: 2024
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة