What is the zakat amount on a fava bean harvest of 7144 Egyptian pounds, taking into account that the farmer takes one-quarter before deducting expenses, and that the fava beans rely on irrigation once then rain; and are the expenses and the farmer's share deducted before calculating zakat, or is it calculated on the total amount?

Foul (fava beans) is among the crops subject to zakat, as it is a storable and measurable staple food, according to the Shafi'i and Maliki schools. Also, according to the Hanafi school, it is subject to zakat because it is something that grows from the earth. The minimum threshold (nisab) for which zakat is obligatory is five wasqs (three hundred sa's). Zakat is obligatory on each partner if their share reaches the nisab, without deducting expenses and costs. If the crop is sold, foul must be purchased to pay the zakat, because paying its value is not sufficient according to the majority of scholars. As for the amount to be given, if irrigated by rainwater, one-tenth is due; if irrigated at cost, one-half of one-tenth is due; and if irrigated by both, three-quarters of one-tenth is due.