Sahih al-Bukhari 6430
صحيح البخاري#6430SahihNarrated Qais:I heard Khabbab, who had branded his `Abdomen with seven brands, saying, "Had Allah's Messenger (ﷺ) not forbidden us to invoke Allah for death, I would have invoked Allah for death. The companions of Muhammad have left this world without taking anything of their reward in it (i.e., they will have perfect reward in the Hereafter), but we have collected of the worldly wealth what we cannot spend but on earth (i.e. on building houses)
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: 81:19