Sahih al-Bukhari 1074
صحيح البخاري#1074SahihNarrated Abu Salama:I saw Abu Huraira reciting Idha-Sama' un-Shaqqat and he prostrated during its recitation. I asked Abu Huraira, "Didn't I see you prostrating?" Abu Huraira said, "Had I not seen the Prophet (ﷺ) prostrating, I would not have prostrated
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 17:8