Sayyiduna Jabir bin Abdullah (may Allah be pleased with them both) narrates this statement of the Prophet Muhammad (peace and blessings be upon him): "Whenever a believing man or woman falls ill, or (the narrator is in doubt or perhaps these are the words) a Muslim man or woman falls ill, Allah Almighty, because of that, wipes away their sins just as a tree sheds its leaves."
Hadith Referenceصحیح ابن حبان / كتاب الجنائز وما يتعلق بها مقدما أو مؤخرا / 2927
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيصحيح - «الصحيحة» (2503).فضيلة الشيخ العلّامة شُعيب الأرناؤوطحديث صحيح