It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that one day fever was cursed in the presence of the Messenger of Allah (peace and blessings be upon him), so the Messenger of Allah (peace and blessings be upon him) said: "Do not curse it, for by the One in whose Hand is my soul, it removes the sins of the believer just as the furnace removes the impurities of iron."
No one narrated this hadith from Alqamah bin Marthad (may Allah have mercy on him) except Musa bin Ubaydah (may Allah have mercy on him), and Abd al-Aziz bin Muhammad (may Allah have mercy on him) is alone in narrating it. And Hafs bin Ubaydullah bin Anas (may Allah have mercy on him) did not narrate any hadith from Sayyiduna Abu Hurayrah (may Allah be pleased with him) other than this one.
Hadith Referenceالمعجم الأوسط / باب الميم / 6248
Hadith Takhrij«أخرجه ابن ماجه فى «سننه» برقم: 3469، والبزار فى «مسنده» برقم: 8202، وابن أبي شيبة فى «مصنفه» برقم: 10915»