om salba motcha modi sadaya sabaha

In Sanskrit, this is probably:
Om (duh)
salba = sarva (सर्व) = “all”
motcha = believe it or not this is probably “Buddhas”
moji = “Bodhisattvas”
sadaya = sadaya (सदय) = “compassionate, pitiful, merciful”
sabaha

懺悔眞言
참회진언
唵、薩婆菩陀、菩提、薩陀耶、莎訶 [娑婆訶]
옴、살바못자、모지、사다야、사바하

The Hanja above is found in the Bulja Pillam
https://kabc.dongguk.edu/search/group?q=query%24옴、살바못자、모지、사다야、사바하