How is the zakat for date palms calculated if part of the dates are sold while the other part remains on the palm?

Zakat on dates becomes obligatory when they ripen and reach the threshold of five wasqs. The amount due is one-tenth if irrigated without effort, and one-half of one-tenth if irrigated with machinery. If any dates are sold, their zakat remains a personal obligation, and all dates produced must be accounted for to calculate and pay their zakat. According to the majority of scholars, and this is the sound view, it is not permissible to pay the value of zakat in cash. Therefore, the zakat on dates must be paid in dates. If the dates are sold after they have been estimated (for zakat purposes), then the amount of zakat due must be purchased in dates and given to the eligible recipients.