Sunan an-Nasa'i 1467
سنن النسائي#1467Da'ifأَخْبَرَنَا يَعْقُوبُ بْنُ إِبْرَاهِيمَ، عَنْ إِسْمَاعِيلَ ابْنِ عُلَيَّةَ، قَالَ حَدَّثَنَا سُفْيَانُ الثَّوْرِيُّ، عَنْ حَبِيبِ بْنِ أَبِي ثَابِتٍ، عَنْ طَاوُسٍ، عَنِ ابْنِ عَبَّاسٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم صَلَّى عِنْدَ كُسُوفِ الشَّمْسِ ثَمَانِيَ رَكَعَاتٍ وَأَرْبَعَ سَجَدَاتٍ . وَعَنْ عَطَاءٍ مِثْلُ ذَلِكَ .
It was narrated from Tawus from Ibn Abbas, that :The Messenger of Allah (ﷺ) prayed when the sun was eclipsed, bowing eight times and prostrating four times
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: 16:9