Abu Bakr Siddiq (Allah be pleased with him) sent me during Hajj before the Farewell Pilgrimage for which Messenger of Allah ﷺ had appointed him an Amir, among a group of people whom he had ordered to make announcement to the people on the Day of Nahr:" After this year no polytheist may perform the Pilgrimage and no naked person may circumambulate the House." Ibn Shihab stated that Humaid b. Abd al-Rahman said that according to this narration of Abu Huraira (Allah be pleased with him) the day of Hajj al-Akbar (Great Hajj) is this Day of Nahr (10th of Dhu'l-Hijja).  

بَعَثَنِي أَبُو بَكْرٍ الصِّدِّيقُ فِي الْحَجَّةِ الَّتِي أَمَّرَهُ عَلَيْهَا رَسُولُ اللَّهِ ﷺ قَبْلَ حَجَّةِ الْوَدَاعِ فِي رَهْطٍ يُؤَذِّنُونَ فِي النَّاسِ يَوْمَ النَّحْرِ لاَ يَحُجُّ بَعْدَ الْعَامِ مُشْرِكٌ وَلاَ يَطُوفُ بِالْبَيْتِ عُرْيَانٌ قَالَ ابْنُ شِهَابٍ فَكَانَ حُمَيْدُ بْنُ عَبْدِ الرَّحْمَنِ يَقُولُ يَوْمُ النَّحْرِ يَوْمُ الْحَجِّ الأَكْبَرِ مِنْ أَجْلِ حَدِيثِ أَبِي هُرَيْرَةَ