Sahih Bukhari Volume 6, Book 65, Hadith 4658

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، حَدَّثَنَا اللَّيْثُ، حَدَّثَنِي عُقَيْلٌ، قَالَ ابْنُ شِهَابٍ فَأَخْبَرَنِي حُمَيْدُ بْنُ عَبْدِ الرَّحْمَنِ، أَنَّ أَبَا هُرَيْرَةَ، قَالَ بَعَثَنِي أَبُو بَكْرٍ ـ رضى الله عنه ـ فِي تِلْكَ الْحَجَّةِ فِي الْمُؤَذِّنِينَ، بَعَثَهُمْ يَوْمَ النَّحْرِ يُؤَذِّنُونَ بِمِنًى أَنْ لاَ يَحُجَّ بَعْدَ الْعَامِ مُشْرِكٌ، وَلاَ يَطُوفَ بِالْبَيْتِ عُرْيَانٌ‏.‏ قَالَ حُمَيْدٌ ثُمَّ أَرْدَفَ النَّبِيُّ صلى الله عليه وسلم بِعَلِيِّ بْنِ أَبِي طَالِبٍ، فَأَمَرَهُ أَنْ يُؤَذِّنَ بِبَرَاءَةَ‏.‏ قَالَ أَبُو هُرَيْرَةَ فَأَذَّنَ مَعَنَا عَلِيٌّ فِي أَهْلِ مِنًى يَوْمَ النَّحْرِ بِبَرَاءَةَ، وَأَنْ لاَ يَحُجَّ بَعْدَ الْعَامِ مُشْرِكٌ، وَلاَ يَطُوفَ بِالْبَيْتِ عُرْيَانٌ‏

Narrated By Humaid bin Abdur Rahman : Abu Huraira said, "Abu Bakr sent me in that Hajj in which he was the chief of the pilgrims along with the announcers whom he sent on the Day of Nahr to announce at Mina: "No pagan shall perform Hajj after this year, and none shall perform the Tawaf around the Ka'ba in a naked state." Humaid added: That the Prophet sent 'Ali bin Abi Talib (after Abu Bakr) and ordered him to recite aloud in public Surat-Baraa. Abu Huraira added, "So 'Ali, along with us, recited Bara'a (loudly) before the people at Mina on the Day of Nahr and announced "No pagan shall perform Hajj after this year and none shall perform the Tawaf around the Ka'ba in a naked state."