مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2097
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated from Ibn 'Abbas (رضي الله عنه) that when the Prophet (ﷺ) moved on from ‘Arafah, the people began to rush and he said - or it was called out to them -: "It is not righteousness to make the horse or camel rush." He said: And I did not see any of these mounts raising its feet and rushing, until we reached Muzdalifah.
Musnad Ahmad 2099A saheeh hadeeth; this is a hasan isnad]