What is the force of the second clause in “Wa-mā ubarriʾu nafsī; inna l-nafsa la-ammāratun bi-l-sūʾ”?

Al-Faṣl: Separation of Clauses and Its Rhetorical Grounds

• Description of a garden
• A reason for not exonerating oneself
• A double negation of the first
• A command to the audience