The Aposlte of Allah (May peace be upon him) forbade giving four names to our slaves : Aflah (successful), Yasar (wealth), Naf(beneficial) and Rabah (profit). (Using translation from Abū Dāʾūd 4959)
نَهَى رَسُولُ اللهِ ﷺ أَنْ تُسَمِّيَ رَقِيقَكَ أَرْبَعَةَ أَسْمَاءٍ أَفْلَحَ وَيَسَارًا وَنَافِعًا وَرَبَاحًا