You sure or not Om mani padmi hum is his mantra. not
how he is prononced
Om => Emanation body of
Buddha
(Om )
Mani Padmi => Enjoyment Body of Buddha (Ah)
Hum => Dharma Body of
Buddha
(Hum)
Mani also means All Fufilling Jewel which
reprents Bodhicitta
Padmi means lotus wihich represent wisdom
In our path to enlightenment, we require both skillfullness
(Bodhicitta) and wisdom