Is a person considered among those who hoard gold and silver if he buys gold for profit, then invests the profit in another project, knowing that he used to pay zakat on these pounds?

The forbidden treasure of gold, silver, and money is that upon which zakat (definition) has not been paid. That upon which zakat has been paid is not a treasure, even if it is abundant. If the one obligated to pay zakat withholds the zakat on his wealth, then the prohibition relates to the amount of zakat due, according to some scholars. According to another group, the prohibition does not relate to the wealth itself, but rather to the owner's responsibility.