Language:
كتاب بدء الخلق
59  
Beginning of Creation
(10)
Chapter: The description of the (Hell) Fire and the fact that it has already been created
(10)
باب صِفَةِ النَّارِ وَأَنَّهَا مَخْلُوقَةٌ
Sahih al-Bukhari 3261

Narrated Abu Jamra Ad-Dabi:

I used to sit with Ibn `Abbas in Mecca. Once I had a fever and he said (to me), "Cool your fever with Zamzam water, for Allah's Messenger (ﷺ) said: 'It, (the Fever) is from the heat of the (Hell) Fire; so, cool it with water (or Zamzam water).

حَدَّثَنِي عَبْدُ اللَّهِ بْنُ مُحَمَّدٍ، حَدَّثَنَا أَبُو عَامِرٍ، حَدَّثَنَا هَمَّامٌ، عَنْ أَبِي جَمْرَةَ الضُّبَعِيِّ، قَالَ كُنْتُ أُجَالِسُ ابْنَ عَبَّاسٍ بِمَكَّةَ، فَأَخَذَتْنِي الْحُمَّى، فَقَالَ أَبْرِدْهَا عَنْكَ بِمَاءِ زَمْزَمَ، فَإِنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ ‏"‏ الْحُمَّى مِنْ فَيْحِ جَهَنَّمَ فَأَبْرِدُوهَا بِالْمَاءِ ‏"‏‏.‏ أَوْ قَالَ ‏"‏ بِمَاءِ زَمْزَمَ ‏"‏‏.‏ شَكَّ هَمَّامٌ‏.‏
Reference : Sahih al-Bukhari 3261
In-book reference : Book 59, Hadith 71
USC-MSA web (English) reference : Vol. 4, Book 54, Hadith 483
  (deprecated numbering scheme)