Jami` at-Tirmidhi 2073
جامع الترمذي#2073SahihRafi' bin Khadij narrated that the Prophet (S.A.W) said:"Fever is from the agitation of the Fire, so cool it with water
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih - Agreed Upon
In-book reference: 28:38