Sahih Muslim 747
Sahih Muslim · Book 6: The Book of Prayer - Travellers · Night prayer, and the one who sleeps and misses it or is sick
'Umar b. Khattab reported Allah's Messenger (ﷺ) as saying:
حَدَّثَنَا هَارُونُ بْنُ مَعْرُوفٍ ، حَدَّثَنَا عَبْدُ اللَّهِ بْنُ وَهْبٍ ، ح وَحَدَّثَنِي أَبُو الطَّاهِرِ ، وَحَرْمَلَةُ ، قَالاَ أَخْبَرَنَا ابْنُ وَهْبٍ ، عَنْ يُونُسَ بْنِ يَزِيدَ ، عَنِ ابْنِ شِهَابٍ ، عَنِ السَّائِبِ بْنِ يَزِيدَ ، وَعُبَيْدِ اللَّهِ بْنِ عَبْدِ اللَّهِ ، أَخْبَرَاهُ عَنْ عَبْدِ الرَّحْمَنِ بْنِ عَبْدٍ الْقَارِيِّ ، قَالَ سَمِعْتُ عُمَرَ بْنَ الْخَطَّابِ ، يَقُولُ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " مَنْ نَامَ عَنْ حِزْبِهِ أَوْ عَنْ شَىْءٍ مِنْهُ فَقَرَأَهُ فِيمَا بَيْنَ صَلاَةِ الْفَجْرِ وَصَلاَةِ الظُّهْرِ كُتِبَ لَهُ كَأَنَّمَا قَرَأَهُ مِنَ اللَّيْلِ " .
Should anyone fall asleep and fail to recite his portion of the Qur'an, or a part of it, if he recites it between the dawn prayer and the noon prayer, it will be recorded for him as though he had recited it during the night.