It was narrated that Abu Hurairah said: "The Messenger of Allah (ﷺ) said: 'If it is very hot, wait until it cools down before you pray, for intense heat is a breeze from Hell.'"
It was narrated from Abu Musa in a Marfu' [1] report: "Wait until it cools down to pray Zuhr, for the heat you experience is a breeze from Hell."
[1] Meaning he attributed it to the Prophet (ﷺ).