Hadith 8:216
Ibn ‘Abbas said the Prophet had himself cupped and gave the cupper his pay; and he poured medicine into his nose. (Bukhari and Muslim.)
وَعَنِ ابْنِ عَبَّاسٍ: أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ احْتَجَمَ فَأَعْطَى الْحَجَّامَ أجره واستعط
Original Reference: Mishkat al-Masabih 2982