Shu'bah (may Allah have mercy on him) said: I heard al-Hajjaj bin al-Hajjaj al-Bahili (may Allah have mercy on him) narrating from his father, who had the companionship of the Messenger, from a man among the Companions of the Prophet (peace and blessings be upon him), I think he was Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him), that "the Prophet (peace and blessings be upon him) ordered them to pray the Zuhr prayer in the cooler time, because the heat is from the vapour of Hell."
Hadith Referenceالمعجم الكبير للطبراني / باب الحاء / 3209