Sunan Abi Dawud 1911
سنن أبي داود#1911Sahihحَدَّثَنَا زُهَيْرُ بْنُ حَرْبٍ، حَدَّثَنَا الأَحْوَصُ بْنُ جَوَّابٍ الضَّبِّيُّ، حَدَّثَنَا عَمَّارُ بْنُ رُزَيْقٍ، عَنْ سُلَيْمَانَ الأَعْمَشِ، عَنِ الْحَكَمِ، عَنْ مِقْسَمٍ، عَنِ ابْنِ عَبَّاسٍ، قَالَ صَلَّى رَسُولُ اللَّهِ صلى الله عليه وسلم الظُّهْرَ يَوْمَ التَّرْوِيَةِ وَالْفَجْرَ يَوْمَ عَرَفَةَ بِمِنًى .
Narrated Abdullah ibn Abbas: The Messenger of Allah (ﷺ) offered the noon prayer on the 8th of Dhul-Hijjah (Yawm at-Tarwiyah) and dawn prayer on the 9th of Dhul-Hijjah (Yawm al-Arafah) in Mina
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: 11:191