Sahih al-Bukhari 6656
صحيح البخاري#6656SahihNarrated Abu Huraira:Allah's Messenger (ﷺ) said, "Any Muslim who has lost three of his children will not be touched by the Fire except that which will render Allah's oath fulfilled
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: 83:35