And from him, from Ali ibn Ibrahim, from his father, from Hammad, from Umar ibn Udhaynah, from Zurarah and Bukayr, from Abu Ja’far عليه السلام, peace be upon him, who said:
Imam عليه السلام said: “There is no Zakat in jewels and the like of them, even if they are abundant.”
Ali Akbar al-Ghaffari
Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 4, p. 124