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 Apostle said: 'It, (the Fever) is from the heat of the (Hell) Fire; so, cool it with water (or Zamzam water).
Explanation & Benefits
Maulana Dawood Raz
Hadith Commentary:
Bathing with cold water is beneficial in cases of bilious (safrawi) fevers.
Nowadays, in cases of severe fever, doctors use ice.
Therefore, what has been said regarding the water of Zamzam is entirely true and correct.
The heat of fever is also a kind of heat, and it is not far from reason to consider it as a portion of the heat of Hellfire.
So understand.
Source: Sahih Bukhari: Commentary by Maulana Dawood Raz, Page: 3261