(24) The Book of Hajj
كتاب مناسك الحج
(92) Chapter: Cupping For The Muhrim
(92) باب الْحِجَامَةِ لِلْمُحْرِمِ ‏.‏
Sunan an-Nasa'i 2846 
It was narrated from Ibn Abbas that:
The Prophet was treated by means of cupping when he was Ihram.
أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنْ عَمْرٍو، عَنْ طَاوُسٍ، وَعَطَاءٍ، عَنِ ابْنِ عَبَّاسٍ، أَنَّ النَّبِيَّ صلى الله عليه وسلم احْتَجَمَ وَهُوَ مُحْرِمٌ ‏.‏
Grade :  Sahih (Darussalam)
Reference : Sunan an-Nasa'i 2846
In-book reference : Book 24, Hadith 229
English translation : Vol. 3, Book 24, Hadith 2849