Sunan Ibn Majah, Volume 4, Book 25, Hadith 3081 (DarusSalam) ⓘ
It was narrated from Ibn ‘Abbas that the Prophet was treated with cupping when he was fasting and in the state of Ihram.
حَدَّثَنَا مُحَمَّدُ بْنُ الصَّبَّاحِ، أَنْبَأَنَا سُفْيَانُ بْنُ عُيَيْنَةَ، عَنْ يَزِيدَ بْنِ أَبِي زِيَادٍ، عَنْ مِقْسَمٍ، عَنِ ابْنِ عَبَّاسٍ، أَنَّ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ احْتَجَمَ وَهُوَ صَائِمٌ مُحْرِمٌ .
also referenced under: Hadith 3081 (Reference) & Book 25, Hadith 3199 (In-Book)