Shia Azan on Google Home

Casting a licensed recording from a phone works reliably but is manual. Scheduled playback needs a routine or an integration that supports prayer-time triggers.

Routines generally trigger on fixed clock times, and prayer times move daily. Without a prayer-aware integration you would be re-editing routines constantly.

Test on one prayer before configuring all five, and confirm the speaker's default volume is appropriate at night.

The same consideration as any voice assistant applies: review what is recorded and retained.