Sahih al-Bukhari 876

صحيح البخاري#876Sahih

Narrated Abu Huraira:I heard Allah's Messenger (ﷺ) saying, "We (Muslims) are the last (to come) but (will be) the foremost on the Day of Resurrection though the former nations were given the Holy Scriptures before us. And this was their day (Friday) the celebration of which was made compulsory for them but they differed about it. So Allah gave us the guidance for it (Friday) and all the other people are behind us in this respect: the Jews' (holy day is) tomorrow (i.e. Saturday) and the Christians' (is) the day after tomorrow (i.e. Sunday)

Scholarly Authentication

We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:

Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.

In-book reference: 11:1