Language:
كتاب التفسير
65  
Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh))
(3)
"... And they became like the dry stubble of a fold-builder. And indeed, We have made the Qur'an easy to understand and remember; then is there any that will remember (or receive admonition) ." (V.54:31,32)
(3)
Sahih al-Bukhari 4872

Narrated `Abdullah bin Masud:

The Prophet (ﷺ) used to recite: "Fahal-min-Maddakir (then is there any that will receive admonition?")

حَدَّثَنَا عَبْدَانُ، أَخْبَرَنَا أَبِي، عَنْ شُعْبَةَ، عَنْ أَبِي إِسْحَاقَ، عَنِ الأَسْوَدِ، عَنْ عَبْدِ اللَّهِ ـ رضى الله عنه ـ عَنِ النَّبِيِّ صلى الله عليه وسلم قَرَأَ ‏{‏فَهَلْ مِنْ مُدَّكِرٍ‏}‏ الآيَةَ‏.‏
Reference : Sahih al-Bukhari 4872
In-book reference : Book 65, Hadith 393
USC-MSA web (English) reference : Vol. 6, Book 60, Hadith 395
  (deprecated numbering scheme)