مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2684
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated from Ibn ‘Abbas (رضي الله عنه) that The Prophet (ﷺ) prayed Zuhr on the day of at Tarwiyah in Mina, and he prayed Fajr on the day of 'Arafah there.
Musnad Ahmad 2701Its isnad is saheeh]