Sunan an-Nasa'i 1765
سنن النسائي#1765Sahihأَخْبَرَنَا مُحَمَّدُ بْنُ إِبْرَاهِيمَ الْبَصْرِيُّ، قَالَ حَدَّثَنَا خَالِدُ بْنُ الْحَارِثِ، قَالَ قَرَأْتُ عَلَى عَبْدِ الْحَمِيدِ بْنِ جَعْفَرٍ عَنْ نَافِعٍ، عَنْ صَفِيَّةَ، عَنْ حَفْصَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم أَنَّهُ كَانَ يُصَلِّي رَكْعَتَىِ الْفَجْرِ رَكْعَتَيْنِ خَفِيفَتَيْنِ .
It was narrated from Hafsah that:The Prophet (ﷺ) used to pray the two rak'ahs of Fajr, two brief rak'ahs
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:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiIsnaad Sahih
In-book reference: 20:168