Which caution is appropriate when explaining al-waswās?

Supplementary Practice 24 — Comparative Rhetoric of Sūrat al-Falaq and Sūrat al-Nās

• It is an imperative in every interpretation
• There is no descriptive or agentive significance
• It may be treated as an intensive agent designation or a descriptive use of a noun linked to whispering
• It is invariably a masculine sound plural