It is narrated from Sayyiduna Abu Sa'id Khudri, may Allah be pleased with him, that the Messenger of Allah, peace and blessings be upon him, said: In Hell, the buttocks of the disbeliever will become equal to the distance of a three-day journey, each of his molar teeth will become equal to the Uhud mountain, his thigh will become equal to the Wurqan mountain, and the thickness of his skin will be forty hand spans, while his flesh and bones will be in addition to that.