He invested his money in business with someone; does he have to give zakah on both the capital and the profit, and how should he give it?

He Does Not Have Cash to Pay Zakah on Trade Goods

Is There Zakah Due on Factory Products?

How is the hijri year worked out for trade goods if they were bought with cash?

How to Give Zakah on Computer Apps and Software Programs

Selling old coins for more than their face value

He bought Islamic sukuk; does he have to pay zakaah on the profits or on both the profits and the principal?

How should each partner pay his share of zakah on trade goods when one full (Hijri) year has passed on his wealth?

If he is hesitant about whether he wants to sell the land, then there is no zakaah on it

Ruling on delaying zakaah on trade goods due to lack of cash flow; does he have to borrow money in order to give zakaah?