Sayyidina Abu Dharr narrated saying I came to AlIahs Messenger (SAW) while he was sitting in the shade of the Ka’hah. He saw me coming and said. ‘They are the losers on the Day of Resurrection, by the Lord of the Kahah I thought perhaps something was revealed concerning me. So, I asked, ‘Who are they-may my parents be ransomed to you!” He said, “They are the wealthy except those who spend here and there”. Then, he scooped his hands and gestured to his front, right and left, and said, ‘By Him, in Whose Hand is my soul, no man dies leaving a camel or a cow against whom he has not paid zakah hut the same animal will come mightier and fatter than what it is and crush him under its hooves and pas away striking him with its horns Every time the second will pass away, the first animal will come back, till people have finished their reckoning’.
[Ahmed21409, Bukhari 775, Muslim 990, Nisai 2439. Ibn e Majah 1785]