Question: Is it an authentic Hadeeth that says: “The Sawm (Fasting) of Ramadaan is not raised (to Allaah) until Zakaat-ul-Fitr (obligatory charity paid before the Festival of Breaking the Fast) is paid”? Is Zakaat-ul-Fitr obligatory on a fasting Muslim who is needy and does not have the Nisaab (the minimum amount on which Zakaah is due) based on the authenticity of the previous Hadeeth or other Islaamic textual evidence authentically reported from the Prophet (peace be upon him)?
Answer: Zakaat-ul-Fitr is obligatory on every Muslim who should be self-supporting if he has one Saa‘ (1 Saa‘ = 3 kg) or more in excess of his and his family’s need on the day and night of ‘Eed-ul-Fitr (the Festival of Breaking the Fast). This is based on the Hadeeth authentically reported on the authority of Ibn ‘Umar (may Allaah be pleased with them both) who said: The Messenger of Allaah (peace be upon him) enjoined the payment of one Saa‘ of dates or one Saa‘ of barley as Zakaat-ul-Fitr on every Muslim slave or free, male or female, young or old, and he ordered that it be paid before the people go out to offer ‘Eed Prayer. (Related by both Al-Bukhaaree and Muslim and the wording is that of Al-Bukhaaree)… read more here.