Sahih al-Bukhari 4363
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."
حَدَّثَنَا سُلَيْمَانُ بْنُ دَاوُدَ أَبُو الرَّبِيعِ، حَدَّثَنَا فُلَيْحٌ، عَنِ الزُّهْرِيِّ، عَنْ حُمَيْدِ بْنِ عَبْدِ الرَّحْمَنِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ أَبَا بَكْرٍ الصِّدِّيقَ ـ رضى الله عنه ـ بَعَثَهُ فِي الْحَجَّةِ الَّتِي أَمَّرَهُ النَّبِيُّ صلى الله عليه وسلم قَبْلَ حَجَّةِ الْوَدَاعِ يَوْمَ النَّحْرِ فِي رَهْطٍ يُؤَذِّنُ فِي النَّاسِ لاَ يَحُجُّ بَعْدَ الْعَامِ مُشْرِكٌ وَلاَ يَطُوفُ بِالْبَيْتِ عُرْيَانٌ‏.‏