Sahih Bukhari
Sahih Bukhari Volume 001, Book 008, Hadith Number 421.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 08. Prayers (Salat)
Narated By Abu Al-Taiyah : Anas said, "The Prophet prayed in the sheep fold." Later on I heard him saying, "He prayed in the sheep folds before the construction of the, mosque."