Sahih al-Bukhari, Hadith 2281 ⓘ
Narrated Anas bin Malik: The Prophet sent for a slave who had the profession of cupping, and he cupped him. The Prophet ordered that he be paid one or two Sas, or one or two Mudds of foodstuff, and appealed to his masters to reduce his taxes:
حَدَّثَنَا آدَمُ، حَدَّثَنَا شُعْبَةُ، عَنْ حُمَيْدٍ الطَّوِيلِ، عَنْ أَنَسِ بْنِ مَالِكٍ ـ رضى الله عنه ـ قَالَ دَعَا النَّبِيُّ صلى الله عليه وسلم غُلاَمًا حَجَّامًا فَحَجَمَهُ، وَأَمَرَ لَهُ بِصَاعٍ أَوْ صَاعَيْنِ، أَوْ مُدٍّ أَوْ مُدَّيْنِ، وَكَلَّمَ فِيهِ فَخُفِّفَ مِنْ ضَرِيبَتِهِ.
also referenced under: Book 37, Hadith 21 (In-Book) & Volume 3, Book 36, Hadith 481 (USC-MSA)