Al-Lu'lu Wal-Marjan 575 — The Book of Zakât

Abu Dharr Narrated from:

I reached him (the Prophet ﷺ) while in the shade of the Ka‘ba; he was saying, “They are the losers, by the Lord of the Ka‘ba! They are the losers, by the Lord of the Ka‘ba!” I said (to myself), “What is wrong with me? Is anything improper detected in me? What is wrong with me?” [1]Then I sat beside him and he kept on repeating his statement. I could not remain quiet, and Allâh knows in what a sorrowful state I was at that time. So I said, “Who are they (the losers)? Let my father and mother be sacrificed for you, O Allâh’s Messenger!” He said, “They are the wealthy people, except the one who does like this and like this and like this (i.e., spends his wealth in Allâh’s Cause).” ( Sahîh Al-Bukhârî, Hadîth No. 633, Vol. 8 )