مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2334
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated from Abu Hurairah (رضي الله عنه) that The Messenger of Allah (ﷺ) used to teach them this supplication as he would teach them a soorah of the Qur'an: “O Allah, I seek refuge in You from the torment of Hell; I seek refuge in You from the torment of the grave; I seek refuge in You from the evil of the Dajjal; and I seek refuge in You from the trials of life and death."
Musnad Ahmad 2342Its isnad is saheeh, Muslim (588)]