Which difference between nominative الْقَاضِي and مُسْلِمِيَّ is correct?

Noun Case Class 9 — Sound Masculine Plural with My

• Both use estimated ḍamma
• Qāḍī has estimated ḍamma; Muslimiyya has estimated wāw
• Both use alif
• Qāḍī is always indeclinable