أَوْ يَذَّكَّرُ فَتَنفَعَهُ ٱلذِّكْرَىٰٓ ۝٤ What makes فَتَنفَعَهُ subjunctive?

Surah ‘Abasa — Part 1

• The particle lam
• The passive voice
• The imperative form
• An omitted an after the causal fāʾ