حَدَّثَنَا أَحْمَدُ بْنُ حَنْبَلٍ، حَدَّثَنَا سُفْيَانُ، عَنْ عَمْرِو بْنِ دِينَارٍ، عَنْ عَطَاءٍ، وَطَاوُسٍ، عَنِ ابْنِ عَبَّاسٍ، أَنَّ النَّبِيَّ صلى الله عليه وسلم احْتَجَمَ وَهُوَ مُحْرِمٌ ‏.‏
Translation
Narrated Anas ibn Malik

The Messenger of Allah (ﷺ) had himself cupped on the surface of his foot because of a pain in it while he was in the sacred state (wearing ihram).

Abu Dawud said: I heard Ahmad say: "Ibn Abi 'Arubah narrated it in Mursal form". Meaning from Qatadah.