Sahih Muslim 1745
صحيح مسلم#1745SahihUmar b. Khattab reported Allah's Messenger (ﷺ) as saying: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
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 6:174