Pukhto de kha da (Pashto yours good is) = your Pashto is good.

One fix: Za pa stasu khabara (message) na pohegum/poha na shwam. I've shuffled your word order around a little. I use "stasu" there in the same way you could use "aap ka" in Urdu, over "sta" which would be "tumhara".

The message, dear Pakhtunzai, was actually in Urdu: Wapasee aney par khosh amdeed. The Khosh Amdeed part (of course) is Farsi.

Really sorry to have confused you here, because even in this short message now, we have examples of four languages.

I'll make it five - Merhaba bikum wa ahlan wa sahlan (Arabic).

And all of it means?

Welcome back.