Not all wealth is treated the same in Islam — wealth from a mine has a special rule.

According to Islamic law, wealth that is extracted from a mine is liable to Khumus. Khumus means "one-fifth," which is 20% of the total wealth gained. This ruling is based on Hadith and Islamic jurisprudence, where such resources are treated like hidden treasures or rare finds.

Khumus is different from Zakat. While Zakat is usually 2.5% and applies to certain types of wealth over a year, Khumus applies immediately to things like buried treasure, minerals, and mine wealth.

The collected Khumus is then used for the welfare of the needy, religious leadership, and public benefit.

This ruling shows that Islam provides guidance not only on earnings from trade or agriculture but also from natural resources beneath the ground.