The Prophet ﷺ was cupped by a slave belonging to Banu Bayadah, and the Prophet ﷺ paid him his wages. Had it been forbidden, he would not have paid him. He also instructed the slave's masters to reduce some of the tribute they required from him.
حدثنا عبد الرزاق حدثنا معمر عن عاصم الأحول عن الشعبي
حجم النبي ﷺ عبد لبني بياضة وأعطاه النبي ﷺ أجره ولو كان حراما لم يعطه قال وأمر مواليه أن يخففوا عنه بعض خراجه