the lyrics were written by a famous Punjabi poet by the name of Baba Bulleh Shah
here is the translation of the Punajbi lyrics courtesy of here:
Bulleh! to me, I am not known
Not a believer inside the mosque, am I
Nor a pagan disciple of false rites
Not the pure amongst the impure
Neither Moses, nor the Pharaoh
Bulleh! to me, I am not known
Not in the holy Vedas, am I
Nor in opium, neither in wine
Not in the drunkard`s craze
Niether awake, nor in a sleeping daze
Bulleh! to me, I am not known
In happiness nor in sorrow, am I
Neither clean, nor a filthy mire
Not from water, nor from earth
Neither fire, nor from air, is my birth
Bulleh! to me, I am not known
Not an Arab, nor Lahori
Neither Hindi, nor Nagauri
Hindu, Turk (Muslim), nor Peshawari
Nor do I live in Nadaun
Bulleh! to me, I am not known
Secrets of religion, I have not known
From Adam and Eve, I am not born
I am not the name I assume
Not in stillness, nor on the move
Bulleh! to me, I am not known
I am the first, I am the last
None other, have I ever known
I am the wisest of them all
Bulleh! do I stand alone?
Bulleh! to me, I am not known