Sahih Muslim | Book 25 | Hadith Number 5327

Narrated by Samura b. Jundub
Samura b. Jundub reported: Allah's Messenger (may peace be upon him) forbade us to give names to our servants as these four names: Aflah (Successful), Rabdh (Profit), Yasar (Wealth), and Nafi' (Beneficial).