Bound as a book.
IAST transliteration.
evaṃ mayā śrūtam ekasmin samaye bhagavān sarvatathāgatakāyavākcittavajrayoṣidbhageṣu vija
hāra || tatra bhagavān āha || sarvatathāgatakāyavākcittahṛdayabhavaṃ mudrākaraṃ guhyātiguhyakaraṃ || aho vajragarbha
sādhusādhumahākṛpamahābodhisatvāvajrasatvasya mahāsatvasya mahāsamayasatvasya hṛdayaṃ hevajrasaṃkhyaṃ śṛṇu || va
jragarbha uvāca ||