In his Last Hajj the Prophet (ﷺ) performed Tawaf of the Ka`ba riding a camel and pointed a bent-headed stick towards the Corner (Black Stone).
Sahih al-Bukhari Book 25, Hadith 93
← Previous Hadith Ibn `Umar. said, "I have never missed the touching of these two stones of Ka`ba (the Black Stone and the Yemenite Corner) both in the presence and the absence of crowds, since I saw the Prophet (ﷺ) touching them." I asked Nafi`: "Did Ibn `Umar use to walk between the two Corners?" Nafi` replied, "He used to walk in order that it might be easy for him to touch it (the Corner Stone)."

Sahih al-Bukhari Book 25, Hadith 92 Next Hadith → Abu Ash-Sha'tha said, "Who keeps away from some portion of the Ka'bah?" Mu'awiya used to touch the four corners of the Ka'bah, Ibn 'Abbas said to him, "These two corners (the one facing the Hijr) are not to be touched." Mu'awiya said, "Nothing is untouchable in the Ka'bah." And Ibn Az-Zubair used to touch all the corners of the Ka'bah.

Sahih al-Bukhari Book 25, Hadith 94