Sunan an-Nasa'i 914
سنن النسائي#914Sahihأَخْبَرَنَا الْحُسَيْنُ بْنُ حُرَيْثٍ، قَالَ حَدَّثَنَا الْفَضْلُ بْنُ مُوسَى، عَنْ عَبْدِ الْحَمِيدِ بْنِ جَعْفَرٍ، عَنِ الْعَلاَءِ بْنِ عَبْدِ الرَّحْمَنِ، عَنْ أَبِيهِ، عَنْ أَبِي هُرَيْرَةَ، عَنْ أُبَىِّ بْنِ كَعْبٍ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " مَا أَنْزَلَ اللَّهُ عَزَّ وَجَلَّ فِي التَّوْرَاةِ وَلاَ فِي الإِنْجِيلِ مِثْلَ أُمِّ الْقُرْآنِ وَهِيَ السَّبْعُ الْمَثَانِي وَهِيَ مَقْسُومَةٌ بَيْنِي وَبَيْنَ عَبْدِي وَلِعَبْدِي مَا سَأَلَ " .
It was narrated that Ubayy bin Ka'b said:"The Messenger of Allah (ﷺ) said: 'Allah, the Mighty and Sublime, did not reveal in the Tawrah or the Injil anything like Umm Al-Quran (Al-Fatihah), which is the seven oft-recited, and (Allah said) it is divided between Myself and My slave will have what he asked for
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:
In-book reference: 11:39