This hadith has been narrated by Ibn 'Uyaina on the authority of al-Zuhri with the same chain of transmitters and he reported: The Apostle of Allah ﷺ was leading prayer at 'Arafa.

حَدَّثَنَا يَحْيَى بْنُ يَحْيَى، وَعَمْرٌو النَّاقِدُ، وَإِسْحَاقُ بْنُ إِبْرَاهِيمَ، عَنِ ابْنِ عُيَيْنَةَ، عَنِ الزُّهْرِيِّ، بِهَذَا الإِسْنَادِ قَالَ وَالنَّبِيُّ ﷺ يُصَلِّي بِعَرَفَةَ .