Hi Sunny_ love_kirtan!
Even I am looking for the same thing. The original words of Guru Nanak which Paramahansaji has given in his Cosmic chants in Hindi are
Ae hari Sundar , tere charan par seer namo
vano vano mein Shyamal Shyamal
giri giri mein unnat unnat
sarita sarita chanchal chanchal
sagar sagar gambhir ae hari!
Ae hari sundar, Ae hari sundar
savak jan ke seva seva kar
premic jan ke prem prem kar
dukhi jano ke hari vedan vedan
yogi jano ke anand ae Hari!!
So, one thing is clear it’s not feom Daaam Granth.
It’s been many years since you posted this question...any luck?