How do the two surahs differ in their argumentative movement after the oaths?

Supplementary Practice 27 — Comparative Rhetoric of Sūrat al-Shams and Sūrat al-Layl

• Al-Shams: purification/corruption and Thamūd; al-Layl: parallel elaborations of divergent striving
• Both narrate only one community’s history
• Al-Shams contains only commands; al-Layl only statements
• All verbs after both oaths are omitted