Why does the Qur'aan not mention the story of Haajar and Zamzam?

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Check below answers in case you are looking for other related questions:
Entering the bathroom with a necklace with Qur'aanic aayaat
Ruling on reciting the Qur’aan collectively

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Related Answers:
If the imam forgets some verses, how can he recite them so that he will have completed the Qur'aan?
They read Qur’aan before Taraaweeh prayer then complete it in the prayer
Reading Qur’aan for one who is lying down in bed
Entering the bathroom with a necklace with Qur'aanic aayaat
Ruling on reciting the Qur’aan collectively

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