The minimum threshold for the nisab of wealth zakah

Question:
May Allah reward you, Honorable Shaykh. This questioner says: What is the minimum threshold for the zakah of wealth? And does it fall under the zakah of trade goods, or under the zakah of gold and silver?

Answer:
The minimum threshold is reaching the nisab; that is the minimum. The nisab of silver is one hundred and forty dirhams. One hundred and forty mithqals, which is one hundred Islamic riyals. In Saudi riyals, it is fifty-six riyals of silver. That is, two hundred Islamic riyals equal fifty-five Saudi riyals of silver.
Or the equivalent, which is the difference of fifty-six in paper gold. This increases and decreases, because the price of silver riyals goes up and down. I infer this from the situation. This is regarding the nisab of silver. The nisab of gold is twenty mithqals. Its amount in Saudi riyals is eleven and a half pounds, or the equivalent of eleven and a half pounds in paper currency. This is the standard, and this is the minimum threshold.