Muhayyisah asked permission of the Messenger of Allah ﷺ regarding hire of the cupper, but he forbade him. He kept on asking his permission, and at last he said to him: Feed your watering camel with it and feed your slave with it. (Using translation from Abū Dāʾūd 3422)
أَنَّهُ اسْتَأْذَنَ رَسُولَ اللهِ ﷺ فِي إِجَارَةِ الْحَجَّامِ فَنَهَاهُ عَنْهَا فَلَمْ يَزَلْ يَسْأَلْهُ فِيهَا حَتَّى قَالَ لَهُ اعْلِفْهُ نَاضِحَكَ وَأَطْعِمْهُ رَقِيقَكَ