Beliau bersabda demam merupakan hembusan Jahannam, maka dinginkanlah dengan air

Imam Muslim : 4099

حَدَّثَنَا هَنَّادُ بْنُ السَّرِيِّ حَدَّثَنَا أَبُو الْأَحْوَصِ عَنْ سَعِيدِ بْنِ مَسْرُوقٍ عَنْ عَبَايَةَ بْنِ رِفَاعَةَ عَنْ جَدِّهِ رَافِعِ بْنِ خَدِيجٍ قَالَ سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ إِنَّ الْحُمَّى فَوْرٌ مِنْ جَهَنَّمَ فَابْرُدُوهَا بِالْمَاءِ

Narrated to us by Hannad bin As Sari Narrated to us by Abu Al Ahwash from Sa'id bin Masruq from Abayah bin Rifa'ah from his grandfather Rafi' bin Khadij, he said, I heard the Messenger of Allah (peace be upon him) say, Fever comes from the heat of Hell. Cool it with water.