Sahih Muslim 6312
صحيح مسلم#6312SahihA'isha reported that Allah's Messenger (ﷺ) called his daughter Fatima (during his last illness). He said. to her something secretly and she wept. He again said to her something secretly and she laughed. 'A'isha further reported that she said to Fatima:What is that which Allah's Messenger (ﷺ) said to you secretly and you wept and then said to you something secretly and you laughed? Thereupon she said: He informed me secretly of his death and so I wept. He then again informed me secretly that I would be the first amongst the members of his family to follow him and so I laughed
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: 44:142