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).
Reference: Sahih al-Bukhari 6431 In-book : Book 81, Hadith 20 USC-MSA web (English) : Vol. 8, Book 76, Hadith 439 (deprecated)
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