The Messenger of Allah ﷺ said, "There is no man who fails to pay the zakat due on his wealth except that on the Day of Resurrection it will be turned into sheets of fire with which his forehead, his brow, and his back will be branded, on a day whose length is fifty thousand years. They will trample him with their hooves" — I think he said — "and bite him with their mouths. Each time the last of them passes, the first returns to him, until judgment is passed among the people, and then he sees his path, either to Paradise or to the Fire. If his wealth was sheep, it will be the same, except that they will gore him with their horns and trample him with their hooves."
حدثنا عبد الرزاق حدثنا معمر عن سهيل بن أبي صالح عن أبيه
قال رسول الله ﷺ ما من رجل لا يؤدي زكاة ماله إلا جعل يوم القيامة صفائح من نار يكوى بها جبينه وجبهته وظهره في يوم كان مقداره خمسين ألف سنة تطؤه بأخفافها حسبته قال وتعضه بأفواهها يرد أولها عن آخرها حتى يقضى بين الناس ثم يرى سبيله وإن كانت غنما فكمثل ذلك إلا أنها تنطحه بقرونها وتطؤه بأظلافها
Its isnad is sahih. It is an abridgment of 7503, which we have already presented and explained there.