وَعَنْ اِبْنِ عَبَّاسٍ رَضِيَ اَللَّهُ عَنْهُمَا-;
أَنَّهُ قَالَ: «اِحْتَجَمَ رَسُولُ اَللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَأَعْطَى اَلَّذِي حَجَمَهُ أَجْرَهُ» وَلَوْ كَانَ حَرَاماً لَمْ يُعْطِهِ
The Messenger of Allah (sallallahu alayhi wa sallam) had himself cupped and gave the one who cupped him his pay; and if it were prohibited he would not have given him (his pay).
Bulugh al-Maram 1050, Book 7, Business Transactions, Hadith 161. 1 min read