Sahih Muslim Book 7, Hadith Number 2895.

Chapter : Excellence of walking at a quick pace in Tawaf and Umra and on the occasion of first Tawaf in Hajj.

Abdullah b. ‘Umar (Allah be pleased with them) reported: I saw that when Allah’s Messenger (may peace be upon him) came to Mecca and kissed the Black Stone, (in the first circumambulation) he moved quickly in three circuits out of seven circuits.