Is zakah due on the original capital, or on the capital together with the profits?

Question:
I invested in a project and received profits at the end of the year. The question is: is zakah due on the original capital, or on the capital together with the profits?

Answer:
Yes, zakah is due on all of it, on the profit and on the capital, because the profit is attached to the capital. Even if the profit arrived only one hour or one day before the completion of the year, it follows the capital. Its lunar year is the lunar year of the capital, and he pays zakah on the profit and the capital together.