Sahih al-Bukhari
Sahih al-Bukhari 3264
The description of the (Hell) Fire and the fact that it has already been created
Arabic hadith text
حَدَّثَنَا مُسَدَّدٌ، عَنْ يَحْيَى، عَنْ عُبَيْدِ اللَّهِ، قَالَ حَدَّثَنِي نَافِعٌ، عَنِ ابْنِ عُمَرَ ـ رضى الله عنهما ـ عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ "الْحُمَّى مِنْ فَيْحِ جَهَنَّمَ فَأَبْرِدُوهَا بِالْمَاءِ "
Translation
Narrated Ibn `Umar
The Prophet (ﷺ) said, "Fever is from the heat of the (Hell) Fire; so abate fever with water."