When is the Nisab (minimum threshold) for Zakat on fruits considered?
Chapter on Zakat on Crops and Fruits
Al-Mughni
Book of Zakat
Primary text
The Nisab for Zakat on grains is considered after purification (Tashfiyah). For fruits, the Nisab is considered after they have dried (Jaffaf). If a person possesses ten Wusq of grapes, but after drying (into raisins), they yield less than five Wusq, Zakat is not obligatory because the ruling (obligatory giving) is based on the state at the time the Nisab is required to be met.
Supporting text
A narration from Al-Athram, attributed to Ahmad, suggests that the Nisab for date palms and vineyards is considered based on the grapes or fresh dates (Rutab). Furthermore, one-tenth of the dried dates (Tamr) should be taken from the fresh dates. Abu Bakr preferred this view. However, this narration is interpreted to mean that Zakat is due if the fresh dates reach five Wusq, and the tithe is taken from what results in dates, as taking one-tenth of the fresh dates as dried dates results in taking more than the prescribed one-tenth, which contradicts clear textual evidence and consensus.