مُسْنَدُ أَحْمَدَ
Musnad Ahmad 4040
Musnad of Abdullah bin Mas'ood
It was narrated that ‘Abdullah (رضي الله عنه) said: The Messenger of Allah (ﷺ) said: "There will be tribulations and things that you disapprove of.” We said: O Messenger of Allah, what do you instruct us to do? He said: “Pay your dues (to others), and ask Allah for what is due to you."
Musnad Ahmad 4066A saheeh hadeeth]