Measure of Zakat fitr
“What is the measure of zakat fitr in Ramadan?”
It seems like what the questioner meant was zakat fitr in the month of Ramadan. What must be spent is one sha’ (measurement unit) of the citizen’s staple food, whether in the form of rice, wheat, dates, or other food; it applies for men and women, free man and slave, children and adult, of the muslims as mentioned in an authentic hadith from the Prophet -peace and prayer of Allah be upon him- regarding that matter. Therefore, it is compulsory for people to spend their zakat before they perform the Eid prayer. It is also alright for them to spend it one or two days before Eid. As for the measure, it is approximately equal to 3 kilograms.
Source: Fatwas of Sheikh Ibn Baz, first part. Author: Sheikh Abdul Aziz Ibn Abdullah Ibn Baz
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