"This Fire of yours, which the sons of Adam kindle, is one part from seventy parts of the heat of the Hell." They said: "By Allah! Would it not have been enough O Messenger of Allah?!" He said: "It is sixty-nine parts more – all of them similar in heat.” (Sahih)
Jami` at-Tirmidhi Book 39, Hadith 17
← Previous Hadith "If a pellet like this one, and he pointed to one like Al-jumjumah were to be dropped from the heavens to the earth – and it is the distance of traveling five hundred years it would reach the earth before the night-fall. But if it were dropped from the top of the chain it would travel for forty years, day and night, before it would reach its foundation or bottom.” (Hasan)

Jami` at-Tirmidhi Book 39, Hadith 16 Next Hadith → "This fire of yours is one part from seventy parts of the fire of Hell, each part of it is like the heat of this one."

Jami` at-Tirmidhi Book 39, Hadith 18