Sunan At-Tirmidhi

Amr bin Shu'aib narrated from his father, from his grandfather, :that two women came to the Messenger of Allah, and they each had a bracelet of gold on their forearms. So he said to them: ""Have you paid their Zakat?"" They said, ""No."" The Messenger of Allah said to them: ""Would you like for Allah to fashion then into two bracelets of Fire?"" They said, ""No."" He said: ""Then pay its Zakat