Musnad Abu Ya'la al-Mawsili 152:56

And from Abdullah, from the Prophet, may Allah bless him and grant him peace, who said: "Indeed, Allah will command a caller on the Day of Resurrection: 'O Adam, arise and send forth a mission from your offspring to the Fire.' So Adam will arise and say: 'O my Lord, how many from each?' He will say: 'From every hundred, ninety-nine to the Fire and one to Paradise.'" This weighed heavily upon those who heard it from the Companions of the Messenger of Allah, may Allah bless him and grant him peace, so they said to him: "Who among us will be saved after this?" The Messenger of Allah, may Allah bless him and grant him peace, said: "You are, among two creations of people—Gog and Magog, and they descend from every height—nothing in this world but like a mark on the forearm of a beast, or like a hair on the side of a camel."