Prophet Ayyub was a pious and wealthy man who was grateful to Allah. Shaytan challenged that Ayyub would lose his faith if his wealth was taken away. With Allah's permission, Shaytan caused Ayyub to lose his sheep, farm, gardens, children, and health, leaving him poor and sick. Through it all, Ayyub remained thankful to Allah. After seven years of suffering, Allah cured Ayyub and restored his wealth and family, proving his faith and gratitude could not be shaken.