It wasnarrated from Abu Hurairah that the Messenger of Allah (ﷺ)said:
"Fever is one of the bellows of Hell, so avert it fromyourselveswith cold water." (PT)
English reference (PT): Vol. 4, Book 31, Hadith 3475 (PT)
Arabic reference (PT): Book 31, Hadith 3604 (PT)