In the year prior to the last Hajj of the Prophet (ﷺ) when Allah's Messenger (ﷺ) made Abu Bakr the leader of the
pilgrims, the latter (Abu Bakr) sent me in the company of a group of people to make a public
announcement: 'No pagan is allowed to perform Hajj after this year, and no naked person is allowed to
perform Tawaf of the Ka`ba.' (See Hadith No. 365 Vol. 1)
Sahih al-Bukhari Book 25, Hadith 107