(3) باب فِي كَسْبِ الْحَجَّامِ
Narrated Ibn 'Abbas:
The Messenger of Allah (ﷺ) got him self cupped and gave the cupper his wages. Had he considered it impure, he would not have given it (wage) to him.
Reference: Sunan Abi Dawud 3423
In-book reference: Book 24, Hadith 8
English translation: Book 23, Hadith 3416