The Book of Prayers (Kitab Al-Salat)

Muslim :: Book 4 : Hadith 1284

Abu Huraira reported: The Messenger of Allah (may peace be upon him) said: When it is a hot day, (delay) the prayer till the extreme heat passes away, for the intensity of heat is from the exhalation of Hell.

Source materials are from the University of Southern California MSA site
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