From Sahih Muslim (Hadith 1397):
Abu Huraira reported:The Messenger of Allah (ﷺ) 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. Abu Huraira reported that the Messenger of Allah (ﷺ) said: Refrain from saying (the noon prayer) till the extreme heat passes away, for the Intensity of heat is from the exhalation of Hell. Abu Huraira narrated this hadith from the Messenger of Allah (may peace be up on him) by another chain of transmitters
Reference: Muslim 1397