Sahih Bukhari Volume 5, Book 63, Hadith 3855

حَدَّثَنَا سُلَيْمَانُ بْنُ حَرْبٍ، حَدَّثَنَا شُعْبَةُ، عَنْ أَبِي إِسْحَاقَ، عَنِ الأَسْوَدِ، عَنْ عَبْدِ اللَّهِ ـ رضى الله عنه قَالَ قَرَأَ النَّبِيُّ صلى الله عليه وسلم النَّجْمَ، فَسَجَدَ فَمَا بَقِيَ أَحَدٌ إِلاَّ سَجَدَ، إِلاَّ رَجُلٌ رَأَيْتُهُ أَخَذَ كَفًّا مِنْ حَصًا فَرَفَعَهُ فَسَجَدَ عَلَيْهِ وَقَالَ هَذَا يَكْفِينِي‏.‏ فَلَقَدْ رَأَيْتُهُ بَعْدُ قُتِلَ كَافِرًا بِاللَّهِ‏

Narrated By 'Abdullah : The Prophet recited Surat An-Najam and prostrated, and there was nobody who did not prostrate then except a man whom I saw taking a handful of pebbles, lifting it, and prostrating on it. He then said, "This is sufficient for me." No doubt I saw him killed as a disbeliever afterwards.