Sahih al-Bukhari 4814
صحيح البخاري#4814Sahihحَدَّثَنَا عُمَرُ بْنُ حَفْصٍ، حَدَّثَنَا أَبِي قَالَ، حَدَّثَنَا الأَعْمَشُ، قَالَ سَمِعْتُ أَبَا صَالِحٍ، قَالَ سَمِعْتُ أَبَا هُرَيْرَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " بَيْنَ النَّفْخَتَيْنِ أَرْبَعُونَ ". قَالُوا يَا أَبَا هُرَيْرَةَ أَرْبَعُونَ يَوْمًا قَالَ أَبَيْتُ. قَالَ أَرْبَعُونَ سَنَةً قَالَ أَبَيْتُ. قَالَ أَرْبَعُونَ شَهْرًا. قَالَ أَبَيْتُ، وَيَبْلَى كُلُّ شَىْءٍ مِنَ الإِنْسَانِ إِلاَّ عَجْبَ ذَنَبِهِ، فِيهِ يُرَكَّبُ الْخَلْقُ.
Narrated Abu Huraira:The Prophet (ﷺ) said, "Between the two blowing of the trumpet there will be forty." The people said, "O Abu Huraira! Forty days?" I refused to reply. They said, "Forty years?" I refused to reply and added: Everything of the human body will decay except the coccyx bone (of the tail) and from that bone Allah will reconstruct the whole body
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 65:336