Sahih Bukhari
Sahih Bukhari Volume 007, Book 072, Hadith Number 847.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 72. Dress
Narrated By Usama bin Zaid : Allah's Apostle rode a donkey saddled with a saddle covered with a Fadakiyya velvet sheet, and he made me ride behind him.