The corruption in the earth, such as drought, disease, poverty, and fear, is evil, but it is good in another respect. Allah the Exalted said:
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The Shaykh : For example: "The corruption in the earth, such as drought, disease, poverty, and fear, is evil". Correct? Drought is the opposite of fertility, meaning the land is barren with no vegetation. This is evil because it destroys livestock and cattle, and sometimes even humans. Disease is evil, poverty is evil, and ignorance is evil. But it is good in another respect. For example, Allah the Exalted says: [Ar-Rum 30:41] This is evil corruption, but [Ar-Rum 30:41] So returning [to Allah] is certainly good. If they taste some of what they have done, that is also good, because it is an acceleration of the punishment in this world, and the punishment in this world is easier than the punishment in the Hereafter.
I think it is now clear that evil is not pure evil, even in the actions of Allah (Blessed and Exalted is He), because His action is all wisdom.
Corruption has appeared throughout the land and sea by [reason of] what the hands of people have earned
ظهر الفساد في البر والبحر بما كسبت أيدي الناسso He may let them taste part of [the consequence of] what they have done that perhaps they will return [to righteousness].
ليذيقهم بعض الذي عملوا لعلهم يرجعونI think it is now clear that evil is not pure evil, even in the actions of Allah (Blessed and Exalted is He), because His action is all wisdom.