مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2452
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated that `Abdul-Azeez bin Rufai' said: Someone told me who heard Ibn 'Abbas (رضي الله عنه) say: The Messenger of Allah (ﷺ) did not halt between ‘Arafah and Muzdalifah except to pass water.
Musnad Ahmad 2464Saheeh, this is a da'eef isnad]