(12) The Chapters on Business Transactions
كتاب التجارات
(10) Chapter: Earnings Of A Cupper
(10.00) باب كَسْبِ الْحَجَّامِ
Sunan Ibn Majah 2166 
It was narrated from Haram bin Munayyisah that :
his father asked the Prophet (ﷺ) about the earnings of a cupper and he forbade him from that. Then he mentioned his need and he said: "Spend it on feeding your she-camels that draw water."
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا شَبَابَةُ بْنُ سَوَّارٍ، عَنِ ابْنِ أَبِي ذِئْبٍ، عَنِ الزُّهْرِيِّ، عَنْ حَرَامِ بْنِ مُحَيِّصَةَ، عَنْ أَبِيهِ، أَنَّهُ سَأَلَ النَّبِيَّ ـ صلى الله عليه وسلم ـ عَنْ كَسْبِ الْحَجَّامِ فَنَهَاهُ عَنْهُ فَذَكَرَ لَهُ الْحَاجَةَ فَقَالَ ‏ "‏ اعْلِفْهُ نَوَاضِحَكَ ‏"‏ ‏.‏
Grade :  Sahih (Darussalam)
Reference : Sunan Ibn Majah 2166
In-book reference : Book 12, Hadith 30
English translation : Vol. 3, Book 12, Hadith 2166