Abu Dawud Book 36, Hadith Number 4939.
Chapter : Not known.
Narated By Umar ibn al-Khattab : Masruq said: I met Umar ibn al-Khattab (Allah be pleased with him) who said: Who are you? I replied: Masruq ibn al-Ajda’. Umar then said: I heard the Apostle of Allah (PBUH) say: al-Ajda’ (mutilated) is a devil.