Sharpening is mentioned in the Quran in these verses:

[75:7] Once the vision is sharpened.

[75:8] And the moon is eclipsed.

[75:9] And the sun and the moon crash into one another.

[75:10] The human being will say on that day, “Where is the escape?”

[75:11] Absolutely, there is no escape.

[75:12] To your Lord, on that day, is the final destiny.

[75:13] The human being will be informed, on that day, of everything he did to advance himself, and everything he did to regress himself.

[75:14] The human being will be his own judge.

[75:15] No excuses will be accepted.

To learn more, read the Quran in English.

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