Sahih al-Bukhari 1067
صحيح البخاري#1067Sahihحَدَّثَنَا 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 `Abdullah bin Mas`ud:The Prophet (ﷺ) recited Surat an-Najm (53) 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
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 17:1