Sahih Bukhari
Sahih Bukhari Volume 002, Book 026, Hadith Number 682.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 26. Pilgrimmage (Hajj)
Narated By Ibn Abbas : The Prophet performed Tawaf of the Ka'ba riding a camel, and every time he came in front of the Corner (having the Black Stone), he pointed towards it with something he had with him and said Takbir.