Chapter 17: Prostration During Recital of Qur'an
Narrated 'Abdullah bin Mas 'ud: The Prophet (ﷺ) recited Suratan-Najm (103) at Mecca and prostrated while reciting it and those who were
with him did the same except an old man who took a handful of small stones or earth and lifted it to
his forehead and said, "This is sufficient for me." Later on, I saw him killed as a non-believer.
Sahih al-Bukhari 1067