Bismillahir Rahmaanir Raheem
Hadhrat Abu Hurairah (Radhiyallahu 'anhu) narrates that Rasulullah ﷺ is reported to have said:
“When it is an extremely hot day, Allah Ta’ala turns His attention to the people of the skies and the earth. The moment a person recites the following Dua, Allah Ta'ala says to Jahannam: ‘Indeed, a servant of mine has sought refuge in me from you, now you bear testimony that I have granted him salvation from you.'"
[Bayhaqi Vol.1 Pg.411]