Muhammad ibn Yaqub from Muhammad ibn Yahya from Ahmad ibn Muhammad from Ali ibn Hadid from Jamil from some of our companions, that he said:
He said: “There is no zakat on uncoined gold or silver (al-tibr); it is only on dinars and dirhams.”
Ali Akbar al-Ghaffari
Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 4, p. 10