It is narrated from Sayyiduna Jabir (may Allah be pleased with him) that he heard the Prophet (peace and blessings be upon him) saying: When any believing man or woman, or any Muslim man or woman falls ill, Allah forgives his or her sins.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 14725
Hadith Gradingحکم دارالسلام:حديث صحيح، وهذا إسناد ضعيف لضعف ابن لهيعة، وقد توبع