Should he pay zakaah on the profits only or on the capital too?

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Check below answers in case you are looking for other related questions:
Is zakaah due on bonuses?
Zakaah for past years, and on shares in the event of a loss

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Related Answers:
Is zakaah due on business premises?
Ruling on zakaah on a debt – should it be paid from other wealth?
There is no zakaah on machinery; zakaah of one who is in debt
Is zakaah due on bonuses?
Zakaah for past years, and on shares in the event of a loss

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