مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2712
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) used to teach us in the event of fever or pain to recite: “In the Name of Allah the Great, I seek refuge with Allah the Almighty from the evil of a vein gushing with blood and the evil of the heat of the Fire."
Musnad Ahmad 2729lts isnad is da'eef like the previous report]