Musnad Abu Ya'la al-Mawsili 117:161

Muhammad ibn Bahr narrated to us, Abu Maymun—a sheikh from the people of Basra—narrated to us, Thabit narrated to us, from Anas, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Indeed, Allah has in every hour of the hours of the world six hundred thousand freed ones whom He frees from the Fire, all of whom had become deserving of the Fire."