مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2227
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated that Ibn ‘Abbas (رضي الله عنه) said: The Messenger of Allah (ﷺ) said: "Be easy-going and things will be made easy for you."
Musnad Ahmad 2233Saheeh]