Sahih al-Bukhari 1292
صحيح البخاري#1292SahihNarrated Ibn 'Umar from his father: The Prophet (ﷺ) said, "The deceased is tortured in his grave for the wailing done over him." Narrated Shu'ba: The deceased is tortured for the wailing of the living ones over him
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: 23:50