mahāvākye kari ’tat tvam asi’ra sthāpana

mahavakye kari 'tat tvam asi'ra sthapana
"Pranava [omkara] is the maha-vakya [maha-mantra] in the Vedas. Saṅkaracarya's followers cover this to stress without authority the mantra tat tvam asi.
TEXT 131