Why is the name al-qāriʿah repeated in mā adrāka mā al-qāriʿah?

Supplementary Practice 26 — Comparative Rhetoric of Sūrat al-Qāriʿah and Sūrat al-Tīn

• It necessarily deletes a relative pronoun
• Each occurrence refers to a different Day of Judgment
• Repetition cannot perform a meaningful function
• Explicit repetition renews the theme’s gravity and prominence