Does the Hadith concerning Khums in Rikaaz apply to mineral deposits (Ma'adin)?
Chapter on Zakat on Gold and Silver
Al-Mughni
Book of Zakat
Primary text
The argument presented for Khums does not encompass the issue of mineral extraction because the Prophet, peace be upon him, mentioned it specifically in response to an inquiry about found property (luqatah). Mineral extraction is neither found property nor falls under its specific term, and therefore, it does not address the point of dispute.
Supporting text
The traditions supporting Khums are challenged; one involving Abdullah ibn Sa'id is weak, and the soundness of others cannot be verified as they are not recorded in the major collections (Musanid and Dawawin). Moreover, the term Rikaaz, as defined in some traditions (gold and silver created at creation), is distinct from Sayub (veins), although Sayub is sometimes identified with Rikaaz because it derives from 'Sayb,' meaning a generous gift.