Sahih al-Bukhari 7067
صحيح البخاري#7067SahihIbn Mas`ud added: I heard Allah's Messenger (ﷺ) saying; (It will be) from among the most wicked people who will be living at the time when the Hour will be established
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: 92:18