فَإِنَّمَا هِىَ زَجْرَةٌ وَٰحِدَةٌ ۝١٣ فَإِذَا هُم بِٱلسَّاهِرَةِ ۝١٤ Which analysis is correct?

Surah An-Nazi'at — Part 2

• Both particles make verbs jussive
• هِىَ and هُم are objects
• وَٰحِدَةٌ is genitive
• مَا prevents إِنَّ from governing, and إِذَا marks suddenness