Sahih al-Bukhari 3607
صحيح البخاري#3607SahihNarrated Hudhaifa:My companions learned (something about) good (through asking the Prophet) while I learned (something about) evil
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: 61:114