Which analysis correctly combines lām and fāʾ in fal-yaʿbudū?

Supplementary Practice 21: Comparative Rhetorical Study of Sūrat Quraysh and al-Māʿūn

• Take lām as declarative emphasis and fāʾ as oath
• Take lām as negation and fāʾ as unrelated resumption
• Treat the verb as a bare assertion with no imperative force
• The imperative lām commands worship and fāʾ connects it to the preceding favor