Listen to Baba Hari Singh (Randhawe wale) Katha, he uses Sant Jarnail Singh Bhindran wale, Sant baba thakur singh ji khalsa, Bhai Manni Singh Taksal and Baba Deep Singhs Taksaal and other varoius samparda's to prove that Mool Mantar is to Naanak Hosee Bhee Sach.