Sahih Bukhari Volume 2, Book 17, Hadith 1068

حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، قَالَ حَدَّثَنَا غُنْدَرٌ، قَالَ حَدَّثَنَا شُعْبَةُ، عَنْ أَبِي إِسْحَاقَ، قَالَ سَمِعْتُ الأَسْوَدَ، عَنْ عَبْدِ اللَّهِ ـ رضى الله عنه ـ قَالَ قَرَأَ النَّبِيُّ صلى الله عليه وسلم النَّجْمَ بِمَكَّةَ فَسَجَدَ فِيهَا، وَسَجَدَ مَنْ مَعَهُ، غَيْرَ شَيْخٍ أَخَذَ كَفًّا مِنْ حَصًى أَوْ تُرَابٍ فَرَفَعَهُ إِلَى جَبْهَتِهِ وَقَالَ يَكْفِينِي هَذَا‏.‏ فَرَأَيْتُهُ بَعْدَ ذَلِكَ قُتِلَ كَافِرًا‏

Narrated By 'Abdullah bin Masud : The Prophet 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.