When is zakah obligatory on purchased land?

Q: A certain amount of money came into a man's possession. Before a lunar year had passed, he bought a piece of land with part of it, and the rest remained with him until the completion of the lunar year. Is zakah obligatory on the remaining money, is it obligatory on the land, and when does it become obligatory on the land?

A: As for the remaining money until the completion of the lunar year, zakah is due on it if it reaches the nisab or more. Likewise, if it is less than the nisab, but the aforementioned land was bought for the purpose of selling, and the value of the total reaches the nisab until a lunar year has passed over it, then zakah is due. As for the land, if he bought it for cultivation, to use as a residence, or for renting out, then there is no zakah on it. However, if he bought it for trade, then there is zakah on it when the lunar year of the money spent on it is completed, and its value reaches the nisab either by itself or by adding the remaining money to its value, as explained previously. The amount of the nisab was also explained in the answer to the previous question. And success is from Allah.