Sahih Muslim 4485
صحيح مسلم#4485SahihSha'bi reported that the scribe of al-Mughira b. Shu'ba said:Mu'awiya wrote to Mughira: Write for me something which you heard from Allah's Messenger (ﷺ) ; and he wrote: I heard Allah's Messenger (ﷺ) as saying. Verily Allah disapproves three thingq for you: irrelevant talk, wasting of wealth and persistent questioning
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: 30:16