How should the two occurrences of masrūran in 84:9 and 84:13 be interpreted?

Supplementary Practice 29 — Comparative Rhetoric of Sūrat al-Infiṭār and Sūrat al-Inshiqāq

• Same word, different significance determined by context
• Exactly the same person is meant in both
• The joy has an identical cause
• The word is redundant in both