(66) باب حَجُّ أَبِي بَكْرٍ بِالنَّاسِ فِي سَنَةِ تِسْعٍ
Narrated Abu Huraira:
That during the Hajj in which the Prophet (ﷺ) had made Abu Bakr As Siddiq as chief of the, Hajj before the Hajj-ul-Wida,' on the day of Nahr, Abu Bakr sent him along with a group of persons to announce to the people. "No pagan is permitted to perform Hajj after this year, and nobody is permitted to perform the Tawaf of the Ka`ba naked."
Reference: Sahih al-Bukhari 4363
In-book reference: Book 64, Hadith 389
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 5, Book 59, Hadith 649