Sunan Abi Dawud 3648
سنن أبي داود#3648Da'ifحَدَّثَنَا أَحْمَدُ بْنُ يُونُسَ، حَدَّثَنَا أَبُو شِهَابٍ، عَنِ الْحَذَّاءِ، عَنْ أَبِي الْمُتَوَكِّلِ النَّاجِيِّ، عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ، قَالَ مَا كُنَّا نَكْتُبُ غَيْرَ التَّشَهُّدِ وَالْقُرْآنِ .
It was narrated that Abu Saeed Al-Khudri said:"We used not to write anything but the Tasha-hud and the Qur'an
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:
Al-AlbaniShadh
Muhammad Muhyi Al-Din Abdul HamidShadh
Zubair Ali ZaiIsnaad Sahih
In-book reference: 26:9