Ans. This sentence comes from that “Tankhaah Naama” (code of discipline) whose beginning lines are:
“Questions by Bhai Nand Lal, with answers by Sri Guru Gobind Singh Ji”.

It contains the following (poetical) proclamation:
“Listen Nand Lal, this truthWhich I shall make happen during my (spiritual) reignAll (four) castes will become oneAll will meditate on and recite the name of one God (Waheguru)
Each one will ride horses and fly falcons
The Mughals will run away at the sight of these warriors
So brave will be these saint soldiers that A single one will not hesitate to face an army of 1,25,000
Those who lose their lives will be liberated
They will become rulers and therefore
Will have elephants and royal paraphernalia
War drums will beat at their doors
When they fire hundreds of thousands of guns
Then they will be victorious
“COUPLET”
RAJ KAREGA KHALSA, AAKEE RAHE NA KOE,KHUWAAR HOE SABH MILAINGE, BACHE SHARAN JO HOE”
“Only the pure ones shall rule, none shall remain defiant; those who have drifted away, shall repent and come back; the remaining shall seek protection”.
This couplet is recited by the congregation at the end of all religious services.
- Note: After this couplet, to recite any other couplet like “Waheguru Naam Jahaaz Hai, Or “Khanda ja ke haath meh Kalghidhar Jagdish”, is not necessary.
