Sahih Muslim 7227
صحيح مسلم#7227SahihA'isha reported Allah's Apostle (ﷺ) as saying:Everyone who is reckoned thoroughly is undone. I said: Allah's Messenger, has Allah not called (reckoning) as easy reckoning? Thereupon he said.. It implies only presenta- tion of (one's deeds to Him), but if one is thoroughly examined in reckoning, he in fact is undone
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: 53:96