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."
English reference: Vol. 3, Book 12, Hadith 2166
Arabic reference: Book 12, Hadith 2250