Sahih Muslim Book 40, Hadith Number 6831.

Chapter : The haughty and the proud would Set into the fire of hell and the humble and meek would get into Paradise.

It is transmitted on the authority of Abu Huraira that Allah’s Messenger (may peace be upon him) said: The molar tooth of an unbeliever or the canine teeth of an unbeliever will be like Ubud and the thickness of his skin a three night’s journey.