Is zakat obligatory on an inheritance (house, shop, land) after its sale, three years having passed, if the delay in selling was not for the purpose of increasing its value, and is zakat obligatory on the son who had a share in the shop after the division?

The inheritance of a deceased person is divided after their death, unless the heirs agree to postpone the division. There is no Zakat on the house and land. As for the commercial shop, Zakat is obligatory on it. Zakat is calculated on the share of each heir. If their share reaches the threshold (nisab) either by itself or by combining it with other assets they own, and a full year (hawl) has passed, then Zakat becomes obligatory on them for every year that has elapsed. The nisab for banknotes and commercial goods is equivalent to 85 grams of gold or 595 grams of silver, and the amount of Zakat is a quarter of a tenth (2.5%). Zakat does not lapse due to the passage of time; the amount must be estimated, and Zakat must be paid for every past year. Matters related to inheritances must be brought before the Sharia courts for review and investigation into their details.