Sahih Bukhari Volume 002, Book 024, Hadith Number 572.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 24. Obligatory Charity Tax (Zakat)
Narated By Anas : Some meat was presented to the Prophet (p.b.u.h) and it had been given to Barira (the freed slave-girl of 'Aisha) in charity. He said, "This meat is a thing of charity for Barira but it is a gift for us."