When connecting «أَفْوَاجًا فَسَبِّحْ», what happens to tanwīn?

Al-Kāfirūn and An-Naṣr: Applied Madd, Idghām, Ghunnah and Waqf

• Assimilation because of following mīm
• Iẓhār due to following ḥāʾ
• Ikhfāʾ due to following fāʾ
• Madd ʿiwaḍ remains