مختصر صحيح مسلم
Mukhtasar Sahih Muslim
About Hell
Size of a disbeliever’s molar in Hell.
It is narrated from Sayyiduna Abu Huraira, may Allah be pleased with him, that the Messenger of Allah, peace and blessings be upon him, said: The distance between the two shoulders of a disbeliever will be that of a fast rider's journey of three days.