مُسْنَدُ أَحْمَدَ
Musnad Ahmad 4117
Musnad of Abdullah bin Mas'ood
It was narrated from ‘Abdullah that The Prophet (ﷺ) said: "The Hour will come, or the Hour will only come, upon the most evil of people."
Musnad Ahmad 4144Its isnad is saheeh, Muslim (2949)]