Sahih al-Bukhari 5410
صحيح البخاري#5410Sahihحَدَّثَنَا سَعِيدُ بْنُ أَبِي مَرْيَمَ، حَدَّثَنَا أَبُو غَسَّانَ، قَالَ حَدَّثَنِي أَبُو حَازِمٍ، أَنَّهُ سَأَلَ سَهْلاً هَلْ رَأَيْتُمْ فِي زَمَانِ النَّبِيِّ صلى الله عليه وسلم النَّقِيَّ قَالَ لاَ. فَقُلْتُ فَهَلْ كُنْتُمْ تَنْخُلُونَ الشَّعِيرَ قَالَ لاَ وَلَكِنْ كُنَّا نَنْفُخُهُ.
Narrated Abu Hazim:that he asked Sahl, "Did you use white flour during the lifetime of the Prophet (ﷺ) ?" Sahl replied, "No. Hazim asked, "Did you use to sift barley flour?" He said, "No, but we used to blow off the husk (of the barley)
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: 70:38