مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2237
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) was treated with cupping on his head when he was in ihram.
Musnad Ahmad 2243Its isnad is saheeh, al-Bukhari (5700)]