Sunan Ibn Majah, Book 2, Hadith 15 (In-Book) ⓘ
It was narrated that Ibn 'Umar said: "The Messenger of Allah said: 'Wait for it to cool down before you pray the Zuhr.'"
حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ عُمَرَ، حَدَّثَنَا عَبْدُ الْوَهَّابِ الثَّقَفِيُّ، عَنْ عُبَيْدِ اللَّهِ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، قَالَ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ " أَبْرِدُوا بِالظُّهْرِ " .
also referenced under: Hadith 681 (Reference) & Volume 1, Book 2, Hadith 681 (DarusSalam)