It is narrated from Sayyiduna Muhayyisah (may Allah be pleased with him) that he sought the permission of the Messenger of Allah (peace and blessings be upon him) concerning the earnings of the cupper. "He (peace and blessings be upon him) forbade him, but he kept returning to the Messenger of Allah (peace and blessings be upon him) and mentioning his need until" he (peace and blessings be upon him) permitted him to feed from it his water-carrying camel and his slaves.
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 17875