Malik related to me from Ibn Shihab from Muhammad ibn Jubayr ibnMutim that the Prophet, may Allah bless him and grant him peace, said,"I have five names. I am Muhammad. I am Ahmad. I am al-Mahi (theeffacer), by whom Allah effaces kufr. I am al-Hashir (the gatherer),before whom people are gathered. I am al-Aqib (the last)."
USC-MSA web (English) reference: Book 61, Hadith 1
Arabic reference: Book 61, Hadith 1861