Sayyidah Asma' bint Yazid (may Allah be pleased with her) said: My maternal aunt and I came to the Messenger of Allah (peace and blessings be upon him) while both of us had gold bracelets on our hands. He (peace and blessings be upon him) said: "Do you pay its zakah?" We said: "No." He (peace and blessings be upon him) said: "Would you like Allah to put two bracelets of fire on you? Pay its zakah."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 20802