Sahih al-Bukhari
Sahih al-Bukhari 3264
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
Musaddad narrated to us, from Yahya, from ʿUbayd Allah, who said: Nafiʿ narrated to me, from Ibn ʿUmar (may Allah be pleased with them both), from the Prophet (ﷺ), who said: ‘Fever is from the breath of Hell, so cool it with water.’