Sayyiduna Anas (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) passed by some people who were afflicted, and he (peace and blessings be upon him) said: "Did these people not ask Allah Almighty for well-being?"
Al-Bazzar recorded it, and its narrators are thiqat (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأدعية / 17196