Sunan Abi Dawud 1459
سنن أبي داود#1459Sahihحَدَّثَنَا عُثْمَانُ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا جَرِيرٌ، عَنِ الأَعْمَشِ، عَنْ مُسْلِمٍ الْبَطِينِ، عَنْ سَعِيدِ بْنِ جُبَيْرٍ، عَنِ ابْنِ عَبَّاسٍ، قَالَ أُوتِيَ رَسُولُ اللَّهِ صلى الله عليه وسلم سَبْعًا مِنَ الْمَثَانِي الطُّوَلِ وَأُوتِيَ مُوسَى عَلَيْهِ السَّلاَمُ سِتًّا فَلَمَّا أَلْقَى الأَلْوَاحَ رُفِعَتْ ثِنْتَانِ وَبَقِيَ أَرْبَعٌ .
Narrated Abdullah ibn Abbas: The Messenger of Allah (ﷺ) was given seven repeated long surahs, while Moses was given six, When he threw the tablets, two of them were withdrawn and four remained
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: 8:44