 "But none of this is written anywhere or proved yet both personalities used Gurmukhi for writing 'Bani'.THE LINE OF SUCCESSION FROM KABIR TO PRESENT  
From Kabir to present, the Masters of the Divine Science of Light and Sound appear and manifest themselves as an uninterrupted line, through which they transmitted to each successor the one knowledge and the one Power.Subsequently, we can trace an 
exact "family tree" from Kabir Sahib (1398-1518) to Sri Guru Nanak Dev Ji (1469-1539) and further as shown below