One-fifth of Booty to the Cause of Allah (Khumus)

Bukhari :: Book 4 :: Volume 53 :: Hadith 339

Narrated 'Isa bin Tahman:

Anas brought out to us two worn out leather shoes without hair and with pieces of leather straps. Later on Thabit Al-Banani told me that Anas said that they were the shoes of the Prophet.