I saw Allah's Messenger (ﷺ) arriving at Mecca; he kissed the Black Stone Corner first while doing Tawaf and did ramal in the first three rounds of the seven rounds (of Tawaf).
Sahih al-Bukhari Book 25, Hadith 89
← Previous Hadith When Allah's Messenger (ﷺ) and his companions came to Mecca, the pagans circulated the news that a group of people were coming to them and they had been weakened by the Fever of Yathrib (Medina). So the Prophet ordered his companions to do Ramal in the first three rounds of Tawaf of the Ka`ba and to walk between the two corners (The Black Stone and Yemenite corner). The Prophet (ﷺ) did not order them to do Ramal in all the rounds of Tawaf out of pity for them.

Sahih al-Bukhari Book 25, Hadith 88 Next Hadith → The Prophet (ﷺ) did Ramal in (first) three rounds (of Tawaf), and walked in the remaining four, in Hajj and Umra.

Sahih al-Bukhari Book 25, Hadith 90