Sayyiduna Anas (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) said: "When one of you has a fever, let him pour cold water over himself at the time of sahar (before dawn), and let him do this for three nights."
Al-Tabarani recorded it in al-Mu'jam al-Awsat, and its narrators are thiqat (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الطب / 8344
Hadith Gradingمحدثین:إسنادہ صحیح
Hadith Takhrij«اخرجه ابو يعلى فى المسند (3794) ، أخرجه المعجم الأوسط للطبراني برقم: 5170»