Sahih Al Bukhari Hadith Number 1609

Narrated Salim bin `Abdullah that his father said: “I have not seen the Prophet (peace be upon him) touching except the two Yemenite Corners (i.e. the ones facing Yemen).”

25  Hajj (Pilgrimage)
Hadith number 1609
Volume no 2
Chapter: 59 (The two Yemenite Corners of the Ka’bah)