What rhetorical feature is shared by a-lam nashraḥ and a-lam yajidka?

Supplementary Practice 18: Rhetorical Analysis of Sūrat al-Ḍuḥā and Sūrat al-Sharḥ

• Both are prohibitions
• Both seek recognition of an already known divine benefit
• Both are responses to an oath
• Both contain a delayed noun of inna