مُسْنَدُ أَحْمَدَ
Musnad Ahmad 3663
Musnad of Abdullah bin Mas'ood
It was narrated that 'Abdullah (رضي الله عنه) said: The Messenger of Allah (ﷺ) used to disapprove of us staying up after 'Isha'.
Musnad Ahmad 3686A Hasan hadeeth; this is a da’eef isnad]