Sayyidah Umm Salamah (may Allah be pleased with her) said that she used to wear gold anklets. I asked the Messenger of Allah (peace and blessings be upon him) about that: "Is this kanz (hoarded treasure)?" He (peace and blessings be upon him) said: "When you pay its zakah, then it is not kanz."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الزكاة / 7234