What is the principal role of fāʾ in “balaghanī ... fa-fassiḥū al-mamarra”?

Supplementary Practice 8: Rhetorical Analysis of Five Connected Passages

• Drawing the practical directive as a consequence of the report
• It only acts like wāw between two equal reports
• It is merely a verbal repetition of the first clause
• It adds a separate measure without presenting it as a consequence