To which word does emphatic nūn attach in “لَيَحْضُرَنَّ زَيْدٌ”?

Aḍrub al-Khabar: Ibtidāʾī, Ṭalabī and Inkārī Reports

• The noun Zayd
• The verb yaḥḍuru
• An omitted noun after lām
• A preposition