It is narrated from Sayyiduna Abu Dharr (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "On camels there is zakah, on sheep and goats there is zakah, and on cloth there is zakah. Whoever hoards dinars or dirhams, or gold or silver, not setting it aside for a creditor and not spending it in the way of Allah, then it is a treasure (kanz) with which he will be branded on the Day of Resurrection." The mention of cattle has dropped out of this narration.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الزكاة / 7599