ENOfficial
It was narrated from Ibn Abbas that: The Prophet (ﷺ) was treated by means of cupping when he was Ihram.
Source: sunnah.com
Other translations
Arabic
أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنْ عَمْرٍو، عَنْ طَاوُسٍ، وَعَطَاءٍ، عَنِ ابْنِ عَبَّاسٍ، أَنَّ النَّبِيَّ صلى الله عليه وسلم احْتَجَمَ وَهُوَ مُحْرِمٌ .
sunnah.com