Masruq narrates: I met Umar (may Allah be pleased with him), and he said: Who are you? I said: Masruq bin Ajda’. Umar (may Allah be pleased with him) said: I heard the Messenger of Allah (peace and blessings of Allah be upon him) say: "Ajda’, is (the name of) a devil." Its chain is weak. Narrated by Abu Dawood and Ibn Majah.