Are some of them combined in trade goods?

The Shaykh : Regarding trade goods, are some of them combined? For example, if a person has, say, pens, paper, and notebooks, and each one individually does not reach the nisab, but when considered together they reach the nisab, do we say that some of them are combined with others or not? Yes, some of them are combined with others. Why? Because the intended purpose is their value, and they are of one type in reality. That is fine.