Ruling 1822 — The One-Fifth Tax (Khums)

If by digging, a person extracts a mined product from under some land that belongs to someone whose consent he did not get, the opinion held by most jurists (mashhūr) is that whatever is acquired from that belongs to the owner of the land. However, this is problematic and the obligatory precaution is that they must arrive at a settlement. In the event that they are not willing to arrive at a settlement, they must refer to a fully qualified jurist (al‑ḥākim al‑sharʿī) to settle the dispute.