مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2050
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated from Ibn 'Abbas that the Prophet (ﷺ) moved on from Muzdalifah before the sun rose.
Musnad Ahmad 2051lts isnad saheeh]