(39) باب ذِكْرِ الْحَجَّامِ
Narrated Ibn `Abbas:
Once the Prophet (ﷺ) got his blood out (medically) and paid that person who had done it. If it had been illegal, the Prophet (ﷺ) would not have paid him.
Reference: Sahih al-Bukhari 2103
In-book reference: Book 34, Hadith 56
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 3, Book 34, Hadith 316