The source uses the knowledge of Allah as an illustration of comprehensive scope. The operative expression is bi-kulli shayʾin, “of every thing”; kull extends over the class described by shayʾ.
The ending of Qur’an 8:75 reads:
وَاللَّهُ بِكُلِّ شَيْءٍ عَلِيمٌ
And Allah is knowing of every thing.
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General Expressions (ʿAmm): Definition, Types and Legal Indication
The source uses the knowledge of Allah as an illustration of comprehensive scope. The operative expression is bi-kulli shayʾin, “of every thing”; kull extends over the class described by shayʾ.
The ending of Qur’an 8:75 reads:
وَاللَّهُ بِكُلِّ شَيْءٍ عَلِيمٌ
And Allah is knowing of every thing.