"Indeed the person among the inhabitants of the Fire punished least is a man who has two coals beneath his feet, which cause his brain to boil." Other chains report similar narrations.
Jami` at-Tirmidhi Book 39, Hadith 32
← Previous Hadith " I looked into the Fire and I saw that most of its people are women, and I looked into Paradise and I saw that most of its people were the poor." Other chains report similar narrations.

Jami` at-Tirmidhi Book 39, Hadith 31 Next Hadith → "Should I not inform you about the people of Paradise: They are every humble and weak person, who if he were to make an Oath by Allah, He would fulfill it. Should I not inform you about the people of the Fire: They are every prideful, swaggering, ill-speaking person."

Jami` at-Tirmidhi Book 39, Hadith 33