Sahih Bukhari
Sahih Bukhari Volume 005, Book 057, Hadith Number 097.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 57. Companions of the Prophets
Narated By N/A : Narrated the merits of Bilal bin Rabah the freed slave of Abu Bakr. The Prophet said (to Bilal), "I heard the sound of your shoes in Paradise just in front of me."