Mā te rangimarie e noho ki a koe.
This literally translates to "May peace dwell with you." It is a formal and respectful expression.
Here's a breakdown of the words:
* Mā: May (a grammatical particle)
* te rangimarie: peace
* e noho: dwell
* ki a koe: with you
You can also use the following, which is a more direct translation:
Kia rangimarie ki a koe.
This translates to "Peace be with you."
* Kia: Let (a grammatical particle)
* rangimarie: peace
* ki a koe: with you
Both phrases are appropriate and commonly used. The first one is slightly more formal and poetic, while the second one is more direct.