Sahih al-Bukhari 5015
صحيح البخاري#5015Sahihحَدَّثَنَا عُمَرُ بْنُ حَفْصٍ، حَدَّثَنَا أَبِي، حَدَّثَنَا الأَعْمَشُ، حَدَّثَنَا إِبْرَاهِيمُ، وَالضَّحَّاكُ الْمَشْرِقِيُّ، عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ، رضى الله عنه قَالَ قَالَ النَّبِيُّ صلى الله عليه وسلم لأَصْحَابِهِ " أَيَعْجِزُ أَحَدُكُمْ أَنْ يَقْرَأَ ثُلُثَ الْقُرْآنِ فِي لَيْلَةٍ ". فَشَقَّ ذَلِكَ عَلَيْهِمْ وَقَالُوا أَيُّنَا يُطِيقُ ذَلِكَ يَا رَسُولَ اللَّهِ فَقَالَ " اللَّهُ الْوَاحِدُ الصَّمَدُ ثُلُثُ الْقُرْآنِ ". قَالَ أَبُو عَبْدِ اللَّهِ عَنْ إِبْرَاهِيمَ مُرْسَلٌ وَعَنِ الضَّحَّاكِ الْمَشْرِقِيِّ مُسْنَدٌ.
Narrated Abu Sa`id Al-Khudri:The Prophet (ﷺ) said to his companions, "Is it difficult for any of you to recite one third of the Qur'an in one night?" This suggestion was difficult for them so they said, "Who among us has the power to do so, O Allah's Messenger (ﷺ)?" Allah's Apostle replied: " Allah (the) One, the Self-Sufficient Master Whom all creatures need.' (Surat Al-Ikhlas 112.1--to the End) is equal to one third of the Qur'an
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: 66:37