Sunan Abi Dawud 1457
سنن أبي داود#1457Sahihحَدَّثَنَا أَحْمَدُ بْنُ أَبِي شُعَيْبٍ الْحَرَّانِيُّ، حَدَّثَنَا عِيسَى بْنُ يُونُسَ، حَدَّثَنَا ابْنُ أَبِي ذِئْبٍ، عَنِ الْمَقْبُرِيِّ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " { الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَ } أُمُّ الْقُرْآنِ وَأُمُّ الْكِتَابِ وَالسَّبْعُ الْمَثَانِي " .
Abu Hurairah reported the Messenger of Allah (ﷺ) as saying:All praise be to Allah, the Lord of the Universe" (1) is the epitome or basis of the Qur'an, the epitome or basis of the Book, and the seven oft-repeated verses
Scholarly Authentication
The label above is the grade most of these scholars gave, each scholar counted once — 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. When they judged only its chain of narrators (“Isnaad”), the label says “Sound chain”. Each scholar's own wording:
Our source also lists this ruling under Muhammad Muhyi Al-Din Abdul Hamid, the editor of the printed edition it was taken from. It is al-Albani's ruling printed again, so it is counted once.
In-book reference: 8:42