Alms Tax: Profit Accruing from Separated Zakat

Practical Laws of Islam as per the teachings of Ayatullah Sistani

Ruling 1980

If some profit accrues from the zakat that a person has set aside – for example, a sheep that has been kept aside for zakat gives birth to a lamb – then the profit is subject to the same rules as the zakat.

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