Abu Dawud Book 36, Hadith Number 4942.

Narated By Jabir ibn Abdullah : The Prophet (PBUH) said: If I survive (God willing), I shall forbid my people to give the names Nafi’ (beneficial), Aflah (successful) and Barakah (blessing). Al-A’mash said: I do not know whether he mentioned Nafi’ or not. When a man comes and asks: Is there Barakah (blessing)? The people say: No.