Ibn Abbas reported: The Messenger of Allah, peace and blessings be upon him, obligated Zakat al-Fitr as purification of the fasting person from vain talk and misbehavior, as food for the poor. Whoever pays it before the Eid prayer, it is accepted as Zakat. Whoever pays it after the Eid prayer, it is part of voluntary charity.
Source: Sunan Abī Dāwūd 1609
Grade: Sahih (authentic) according to Al-Albani
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