Sahih Bukhari
One-fifth of Booty to the Cause of Allah (Khumus)
Volume: 004 / Book Number: 053 / Hadith Number: 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.