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).
Sahih al-Bukhari Book 81, Hadith 19
← Previous Hadith The Prophet (ﷺ) said, "The best people are those of my generation, and then those who will come after them (the next generation), and then those who will come after them (i.e. the next generation), and then after them, there will come people whose witness will precede their oaths, and whose oaths will precede their witness."

Sahih al-Bukhari Book 81, Hadith 18 Next Hadith → I came to Khabbab while he was building a wall, and he (Khabbab) said, "Our companions who have left this world, did not enjoy anything of their reward therein, while we have collected after them, much wealth that we cannot spend but on earth (i.e., on building).

Sahih al-Bukhari Book 81, Hadith 20