Silsilat al-Ahadith al-Sahihah

It is narrated from Sayyiduna Abu Umamah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "When a servant becomes ill, Allah Almighty commands the angels: O My angels! I have confined My servant in one of My (trials). If I cause him to die, I will forgive him, and if I grant him well-being (from this illness), he will sit (recovered) and there will be no sin upon him."