Sahih Muslim 5753
صحيح مسلم#5753Sahihوَحَدَّثَنِي هَارُونُ بْنُ سَعِيدٍ الأَيْلِيُّ، أَخْبَرَنَا ابْنُ وَهْبٍ، حَدَّثَنِي مَالِكٌ، ح وَحَدَّثَنَا مُحَمَّدُ، بْنُ رَافِعٍ حَدَّثَنَا ابْنُ أَبِي فُدَيْكٍ، أَخْبَرَنَا الضَّحَّاكُ، - يَعْنِي ابْنَ عُثْمَانَ - كِلاَهُمَا عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " الْحُمَّى مِنْ فَيْحِ جَهَنَّمَ فَأَطْفِئُوهَا بِالْمَاءِ " .
Ibn Umar reported Allah's Messenger (ﷺ) as saying:Fever is from the vehement raging of the fire of Hell, so extinguish it with water
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 39:107