The Book of Qiyam Al-Lail (The Night Prayer) and Voluntary Prayers During the Day
20/66. Chapter:
The reward of one who prays twelve rak'ahs apart from the prescribed prayers during the day and night
Sunan an-Nasai
أَخْبَرَنَا الْحُسَيْنُ بْنُ مَنْصُورِ بْنِ جَعْفَرٍ النَّيْسَابُورِيُّ، قَالَ حَدَّثَنَا إِسْحَاقُ بْنُ سُلَيْمَانَ، قَالَ حَدَّثَنَا مُغِيرَةُ بْنُ زِيَادٍ، عَنْ عَطَاءٍ، عَنْ عَائِشَةَ، قَالَتْ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " مَنْ ثَابَرَ عَلَى اثْنَتَىْ عَشْرَةَ رَكْعَةً فِي الْيَوْمِ وَاللَّيْلَةِ دَخَلَ الْجَنَّةَ أَرْبَعًا قَبْلَ الظُّهْرِ وَرَكْعَتَيْنِ بَعْدَهَا وَرَكْعَتَيْنِ بَعْدَ الْمَغْرِبِ وَرَكْعَتَيْنِ بَعْدَ الْعِشَاءِ وَرَكْعَتَيْنِ قَبْلَ الْفَجْرِ " .
It was narrated that Aishah said: "The Messenger of Allah (ﷺ) said: 'Whoever persists in praying twelve rak'ahs each day and night will enter Paradise: Four before Zuhr and two after, two rak'ahs after Maghrib, two rak'ahs after Isha' and two rak'ahs before Fajr.'"
Reference : Sunan an-Nasa'i 1794In-book reference : Book 20, Hadith 197English translation : Vol. 2, Book 20, Hadith 1795