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كتاب التوحيد
97  
Oneness, Uniqueness of Allah (Tawheed)
(21)
Chapter: “Say ‘What thing is the most great in witness?’ Say: ‘Allah…’”
(21)
Sahih al-Bukhari 7417

Narrated Sahl bin Sa`d:

The Prophet (ﷺ) said to a man, "Have you got anything of the Qur'an?" The man said, "Yes, such-andsuch Sura, and such-and-such Sura," naming the Suras.

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، أَخْبَرَنَا مَالِكٌ، عَنْ أَبِي حَازِمٍ، عَنْ سَهْلِ بْنِ سَعْدٍ، قَالَ النَّبِيُّ صلى الله عليه وسلم لِرَجُلٍ ‏ "‏ أَمَعَكَ مِنَ الْقُرْآنِ شَىْءٌ ‏"‏‏.‏ قَالَ نَعَمْ سُورَةُ كَذَا وَسُورَةُ كَذَا‏.‏ لِسُوَرٍ سَمَّاهَا‏.‏
Reference : Sahih al-Bukhari 7417
In-book reference : Book 97, Hadith 45
USC-MSA web (English) reference : Vol. 9, Book 93, Hadith 513
  (deprecated numbering scheme)