Sunan Abi Dawud 1459
سنن أبي داود#1459Da'ifNarrated 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Allah (ﷺ) was given seven repeated long surahs, while Moses was given six, When he threw the tablets, two of them were withdrawn and four remained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
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Shuaib Al ArnautSahih Muquf
Zubair Ali ZaiDaif
In-book reference: 8:44