مُسْنَدُ أَحْمَدَ
Musnad Ahmad 3187
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated from thm 'Abbas (رضي الله عنه) that The Prophet (ﷺ) was treated with cupping - Wakee' said: In al-Qahah - when he was fasting.
Musnad Ahmad 3211lts isnad is saheeh]