Prophet Ayoub (Job) - Iblis Destroys Job's Children

When Iblis saw this, he felt frustrated, so he again addressed Allah: "I have stripped Job of all his possessions, but he still remains grateful to You. However, he is only hiding his disappointment, for he places great store by his many children. The real test of a parent is through his children. You will then see how Job will reject You."

Allah granted Iblis authority, but warned him that it would not reduce Job's faith in his Lord nor his patience.

Iblis again gathered his helpers and set about his evil deeds. He shook the foundation of the house in which Job's children were living and sent the building crashing, killing all of them. Then he went to Job disguised as a man who had come to sympathize with him. In a comforting tone he said to Job: 'The circumstances under which your children died were sad. Surely, your Lord is not rewarding you properly for all your prayers." Having said this, Iblis waited anxiously, hoping Job was now ready to reject Allah.

But again Job disappointed him by replying: "Allah sometimes gives and sometimes takes. He is sometimes pleased and sometimes displeased with our deeds. Whether a thing is beneficial or harmful to me, I will remain firm in my belief and remain thankful to my Creator." Then Job prostrated to his Lord. At this Iblis was extremely vexed.

Iblis Destroys Job's Health
Iblis again called on Allah. "0 my Lord, Job's wealth is gone, his children are dead, but he is still healthy in body, and as long as he enjoys good health he will continue to worship You in the hope of regaining his wealth and producing more children. Grant me authority over his body so that I may weaken it. He will surely neglect worshipping You and will thus become disobedient."
Allah wanted to teach Iblis a lesson that Job was a devoted servant of his Lord, so He granted Iblis his third request but placed a condition: "I give you authority over his body but not over his soul, intellect, or heart, for in these places reside the knowledge of Me and My religion."
Armed with this new authority, Iblis began to take revenge on Job's body and filled it with disease until it was reduced to mere skin and bone and he suffered severe pain. But through all the suffering Job remained strong in his faith, patiently bearing all the hardships without complaining. Allah's righteous servant did not despair or turn to others for help but remained hopeful of Allah's mercy. Even close relatives and friends deserted him. Only his kind, loving wife stayed with him. In his hour of need, she showered her kindness on him and cared for him. She remained his sole companion and comforter through the many years of his suffering.