If I have half the nisab of silver and half the nisab of gold, is zakah due on it?

Question : Now, if someone asks: If I have half the nisab of silver and half the nisab of gold, do I complete this with that?

Answer : Yes? No, because this is gold and this is silver, and each differs from the other in the amount of the nisab, each differs from the other in the attachment of desires to it, and each differs from the other in its kind. This is gold and this is silver. For this reason, it is permissible for me to sell one mithqal of gold for ten mithqals of silver in a sale, meaning there is no riba (usury or interest) in it. If this were of the same kind as that, the difference in value would not apply. And this is the opinion by which you answered me, and it is the stronger position: that gold is not completed by silver, and silver is not completed by gold, just as wheat is not completed by barley, and barley is not completed by wheat. That is, if a person has half the nisab of wheat and half the nisab of barley, he does not complete one with the other due to the difference in kind, even though the intended purpose is one, which is food. So gold and silver are the same in this regard according to the stronger position. Some scholars said that gold is completed by silver. According to this view, if one owns half the nisab of gold and half the nisab of silver, zakah becomes obligatory on him, because together they reach his nisab.