(9) باب الإِبْرَادِ بِالظُّهْرِ فِي شِدَّةِ الْحَرِّ
Narrated Abu Sa`id:
that Allah's Messenger (ﷺ) said, "Pray Zuhr prayer when it becomes (a bit) cooler as the severity of heat is from the raging of the Hell-fire." (ID)
Reference (ID): Sahih al-Bukhari 538 (ID)
In-book reference (ID): Book 9, Hadith 15 (ID)
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 1, Book 10, Hadith 513 (ID)