Sahih al-Bukhari 4863
صحيح البخاري#4863SahihNarrated `Abdullah:The first Sura in which a prostration was mentioned, was Sura An-Najm (The Star). Allah's Messenger (ﷺ) prostrated (while reciting it), and everybody behind him prostrated except a man whom I saw taking a hand-full of dust in his hand and prostrated on it. Later I saw that man killed as an infidel, and he was Umaiya bin Khalaf
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: 65:384