Musannaf Ibn Abi Shaybah

Hazrat Zaid bin Usama (may Allah be pleased with him) narrates that I asked Hazrat Salim (may Allah have mercy on him) and Hazrat Qasim (may Allah have mercy on him) about the earnings of a cupper (barber). Both of them did not consider there to be any harm in it and recited this verse of the Holy Qur'an: { قُلْ لاَ أَجِدُ فِیمَا أُوحِیَ إلَیَّ مُحَرَّمًا عَلَی طَاعِمٍ یَطْعَمُہُ }