Sahih Bukhari
Sahih Bukhari Volume 002, Book 025, Hadith Number 585.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 25. Obligatory Charity Tax After Ramadhan (Zakat-ul-Fitr)
Narated By Ibn 'Umar : The Prophet ordered the people to pay Zakat-ul-Fitr before going to the 'Id prayer.