Hadhrat Abu Hurayrah Radiallahu anhu narrates that Rasulullah Sallalahu Alayhi Wasalam 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]
LA ILAHA ILLALLAHU, MA ASHADDA HARRA HADHAL YAWM,
ALLAHUMA AJIRNI MIN HARRI JAHANNAM
There Is No Deity Except Allah. How Hot Is This Day!
O Allah, Protect Me From The Heat Of Jahnnam