Sahih Muslim 1978
صحيح مسلم#1978SahihAbu Huraira reported Allah's Messenger (ﷺ) as saying:We who are the last shall be the first on the Day of Resurrection, except that every Ummah was given the Book before us and we were given it after them. It was this day which Allah prescribed for us and guided us to it and the people came after us with regard to it, the Jews observing the next day and the Christians the day following that
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: 7:28