Yahya related to me from Malik from Zayd ibn Aslam from IbnBujayd (formerly al-Ansari) from his grandmother that the Messenger ofAllah, may Allah bless him and grant him peace, said, "Give to thevery poor, if only a roasted hoof." (ID)
USC-MSA web (English) reference: Book 49, Hadith 8 (ID)
Arabic reference (ID): Book 49, Hadith 1681 (ID)