(62) باب التَّكْبِيرِ عِنْدَ الرُّكْنِ
Narrated Ibn `Abbas:
The Prophet (ﷺ) 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.
Reference: Sahih al-Bukhari 1613
In-book reference: Book 25, Hadith 99
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 2, Book 26, Hadith 682