Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh))
65/54.4. Chapter:
"... As if they were uprooted stems of date-palms. Then, how (terrible) was My Torment and My Warnings?" (V.54: 20, 21)
Sahih Bukhari
حَدَّثَنَا أَبُو نُعَيْمٍ، حَدَّثَنَا زُهَيْرٌ، عَنْ أَبِي إِسْحَاقَ، أَنَّهُ سَمِعَ رَجُلاً، سَأَلَ الأَسْوَدَ فَهَلْ مِنْ مُدَّكِرٍ أَوْ مُذَّكِرٍ فَقَالَ سَمِعْتُ عَبْدَ اللَّهِ يَقْرَؤُهَا {فَهَلْ مِنْ مُدَّكِرٍ} قَالَ وَسَمِعْتُ النَّبِيَّ صلى الله عليه وسلم يَقْرَؤُهَا {فَهَلْ مِنْ مُدَّكِرٍ} دَالاً.
Narrated Abu 'Is-haq: A man asked Al-Aswad, 'is it 'Fahal min-Muddakir' or'..Mudhdhakir?" Al Aswad replied, 'I have heard `Abdullah bin Masud reciting it, 'Fahal-min Muddakir'; I too, heard the Prophet (ﷺ) reciting it 'Fahal-min-Muddakir' with 'd'.
Reference : Sahih al-Bukhari 4871In-book reference : Book 65, Hadith 392USC-MSA web (English) reference : Vol. 6, Book 60, Hadith 394