Alms Tax: Giving Half a Sa' Based on Price

Practical Laws of Islam as per the teachings of Ayatullah Sistani

Ruling 2028

If a person gives half a ṣāʿ of an item on account of it being double the price – for example, if a particular type of wheat is double the price of ordinary wheat and one gives only half a ṣāʿ – it is not sufficient. In fact, even if he gives half a ṣāʿ with the intention of paying the value of the fiṭrah [as opposed to giving the quantity of the item], it is not sufficient.

-Ayatullah Sistani, Practical Laws of Islam, Alms Tax (Zakat)