Sahih al-Bukhari 759
صحيح البخاري#759Sahihحَدَّثَنَا أَبُو نُعَيْمٍ، قَالَ حَدَّثَنَا شَيْبَانُ، عَنْ يَحْيَى، عَنْ عَبْدِ اللَّهِ بْنِ أَبِي قَتَادَةَ، عَنْ أَبِيهِ، قَالَ كَانَ النَّبِيُّ صلى الله عليه وسلم يَقْرَأُ فِي الرَّكْعَتَيْنِ الأُولَيَيْنِ مِنْ صَلاَةِ الظُّهْرِ بِفَاتِحَةِ الْكِتَابِ وَسُورَتَيْنِ، يُطَوِّلُ فِي الأُولَى، وَيُقَصِّرُ فِي الثَّانِيَةِ، وَيُسْمِعُ الآيَةَ أَحْيَانًا، وَكَانَ يَقْرَأُ فِي الْعَصْرِ بِفَاتِحَةِ الْكِتَابِ وَسُورَتَيْنِ، وَكَانَ يُطَوِّلُ فِي الأُولَى، وَكَانَ يُطَوِّلُ فِي الرَّكْعَةِ الأُولَى مِنْ صَلاَةِ الصُّبْحِ، وَيُقَصِّرُ فِي الثَّانِيَةِ.
Narrated `Abdullah bin Abi Qatada:My father said, "The Prophet (ﷺ) in Zuhr prayers used to recite Al-Fatiha along with two other Suras in the first two rak`at: a long one in the first rak`a and a shorter (Sura) in the second, and at times the verses were audible. In the `Asr prayer the Prophet (ﷺ) used to recite Al-Fatiha and two more Suras in the first two rak`at and used to prolong the first rak`a. And he used to prolong the first rak`a of the Fajr prayer and shorten the second
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: 10:153