oṃ svabhāva śuddhāḥ sarvadharmāḥ svabhāva śuddho ‘haṃ
Note on Pronunciation
The apostrophe in the syllable ‘haṃ is a transliteration of the sanskrit symbol avagraha (transliterated as the nya log character in Tibetan), and is not pronounced. The word ‘haṃ is actually the Sanskrit word ahaṃ (meaning the nominative singular pronoun "I") with the short vowel a elided (i.e. omitted) and replaced with the avagraha.