What did the Prophet Muhammad (saw) say about the intensity of heat being from the exhalation of Hell?
 Hammam b. Munabbih reported:                      This is what Abu Huraira narrated to us from the Holy Prophet and he transmitted some ahadith-one of them was that the Messenger of Allah (may peace be upon him) said: Let the heat become less severe before prayer, for the intensity of heat is from the exhalation of Hell.