بُلُوغُ الْمَرَامِ
Bulugh al-Maram 698
Fasting
وَعَنْ عَائِشَةَ رَضِيَ اَللَّهُ عَنْهَا قَالَتْ: { كَانَ رَسُولُ اَللَّهِ - صلى الله عليه وسلم -إِذَا دَخَلَ اَلْعَشْرُ -أَيْ: اَلْعَشْرُ اَلْأَخِيرُ مِنْ رَمَضَانَ- شَدَّ مِئْزَرَهُ, وَأَحْيَا لَيْلَهُ, وَأَيْقَظَ أَهْلَهُ } مُتَّفَقٌ عَلَيْهِ [1] .
'A’isha (RAA) narrated, ‘With the start of the last ten days of Ramadan, the Messenger of Allah (ﷺ) used to tighten his waist belt (i.e. keep away from his wives) and used to stay up praying all night, and he would also wake his wives (to pray and recite Qur’an etc..).” Agreed upon.
Arabic/English book reference: Book 5, Hadith 718