Sayyiduna Mu'awiyah (may Allah be pleased with him) narrates: I heard the Prophet (peace and blessings be upon him) say: "Whatever afflicts a believer in his body and causes him pain, Allah Almighty (because of that pain) removes the sins of that believer from him."
Ahmad and al-Tabarani recorded it in al-Mu'jam al-Kabir and al-Mu'jam al-Awsat. The full incident is narrated in this report. The narrators of Ahmad are the narrators of the Sahih.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الجنائز / 3793
Hadith Gradingمحدثین:إسنادہ صحیح
Hadith Takhrij«أخرجه مسند أحمد برقم: 16456، وأخرجه المعجم الأوسط للطبراني برقم: 5843»