Sahih al-Bukhari 3247
صحيح البخاري#3247SahihNarrated Sahl bin Sa`d:The Prophet (ﷺ) said, "Verily! 70,000 or 700,000 of my followers will enter Paradise altogether; so that the first and the last amongst them will enter at the same time, and their faces will be glittering like the bright full moon
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: 59:58