Answer

When someone asks you “Sātā mā?” meaning “Are you in sātā / are you well?”, a common Jain reply is:

“Dev-Guru Prasāde sātā mā.”

Meaning: “By the grace of Dev and Guru, I am well / in sātā.”

About “Prasād” vs “Pāsé”

The more meaningful and traditionally appropriate expression is:

Dev-Guru Prasāde —not “Dev-Guru pāsé.”

“Prasāde” means “by the grace/blessing.” “Pāsé” means “near/with,” which does not convey the same devotional meaning in this phrase.

Takeaway

You can simply reply:

“Dev-Guru Prasāde, sātā mā.”