Abu Dawud Book 4, Hadith Number 1893.

Narated By AbdurRahman ibn Safwan : When the Apostle of Allah (PBUH) conquered Mecca, I said (to myself): I shall put on my clothes, and my house lay on the way, I shall watch how the Apostle of Allah (PBUH) behaves. So I went out. I saw that the Prophet (PBUH) and his Companions had come out from the Ka’bah and embraced the House (the Ka’bah) from its entrance (al-Bab) to al-Hatim. They placed their cheek on the House (the Ka’bah) while the Apostle of Allah (PBUH) was amongst them.