Sunan Ibn Majah 3469
سنن ابن ماجه#3469SahihIt was narrated that Abu Hurairah said:“Mention of fever was made in the presence of the Messenger of Allah (ﷺ), and a man cursed it. The Prophet (ﷺ) said: ‘Do not curse it, for it erases sin as fire removes filth from iron.’”
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Fouad Abd al-BaqiSahih
Shuaib Al ArnautSahih Lighairihi
Zubair Ali ZaiSahih
In-book reference: 31:34