English Translation
Narrated Abu Hazim: that he asked Sahl, "Did you use white flour during the lifetime of the Prophet ?" 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)."
This hadith is from Sahih al-Bukhari, the most rigorously authenticated collection in Islamic scholarship. No editorial opinion is added.