Malik related to me from Abu'z-Zinad from al-Araj from AbuHurayra that the Messenger of Allah, may Allah bless him and grant himpeace, said, "The fire of the children of Adam which they kindle is aseventieth part of the fire of Jahannam." They said, "Messenger ofAllah, this fire is certainly enough." He said, "That fire is sixty-nine times greater."
USC-MSA web (English) reference: Book 57, Hadith 1
Arabic reference: Book 57, Hadith 1842