مُسْنَدُ أَحْمَدَ
Musnad Ahmad 3712
Musnad of Abdullah bin Mas'ood
It was narrated that 'Abdullah (رضي الله عنه) said: The Messenger of Allah (ﷺ) said: “The Hour will not come except upon the most evil of people.”
Musnad Ahmad 3735lts isnad is saheeh, Muslim (2949)]