حَدَّثَنَا مُسَدَّدٌ عَنْ يَحْيَی عَنْ عُبَيْدِ اللَّهِ قَالَ حَدَّثَنِي نَافِعٌ عَنْ ابْنِ عُمَرَ رَضِيَ اللَّهُ عَنْهُمَا عَنْ النَّبِيِّ صَلَّی اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ الْحُمَّی مِنْ فَيْحِ جَهَنَّمَ فَأَبْرِدُوهَا بِالْمَائِ
صحیح بخاری · Hadith 3264
Narrated Ibn `Umar: The Prophet said, "Fever is from the heat of the (Hell) Fire; so abate fever with water."
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020