That the Messenger of Allah was treated by means of cupping when he was in Ihram on the top of the foot for contusion that he had suffered. (Using translation from Nasāʾī 2849)
أَنَّ رَسُولَ اللهِ ﷺ احْتَجَمَ وَهُوَ مُحْرِمٌ مِنْ وَثْءٍ كَانَ بِوَرِكِهِ أَوْ ظَهْرِهِ