AVPr, 6, 6, 10.0 vajrāṇāṃ śyenaviṣamasya ca phaṭkāraprabhṛty anujānīyāt //

LiPur, 1, 76, 31.2 huṃphaṭkāre mahāśabdaśabditākhiladiṅmukham //

LiPur, 2, 50, 22.2 huṃphaṭkāramahāśabdaśabditākhiladiṅmukhaḥ //

RRĀ, Ras.kh., 8, 79.2 oṃ huṃ phaṭkāramantreṇa nirvikalpena sādhakaiḥ //

TantraS, 15, 7.0 sapratyayāṃ nirbījāṃ tu yadi dīkṣāṃ mūḍhāya āyātaśaktipātāya ca darśayet tadā hi śivahastadānakāle ayaṃ vidhiḥ trikoṇam āgneyaṃ jvālākarālaṃ rephavisphuliṅgaṃ bahirvātyācakradhyāyamānaṃ maṇḍalaṃ dakṣiṇahaste cintayitvā tatraiva haste bījaṃ kiṃcit nikṣipya ūrdhvādhorephavibodhitaphaṭkāraparamparābhiḥ asya tāṃ jananaśaktiṃ dahet evaṃ kurvan taṃ hastaṃ śiṣyasya mūrdhani kṣipet iti dvayor api eṣā dīkṣā nirbījā svakāryakaraṇasāmarthyavidhvaṃsinī bhavati sthāvarāṇām api dīkṣyatvena uktatvāt vāyupurāntarvyavasthitaṃ dodhūyamānaṃ śiṣyaṃ laghūbhūtaṃ cintayet yena tulayā laghuḥ dṛśyate iti //

TĀ, 20, 4.1 vahnidīpitaphaṭkāradhoraṇīdāhapīḍitam /

ToḍalT, Tṛtīyaḥ paṭalaḥ, 49.1 purato vajrapāṣāṇe phaṭkāreṇa vinikṣipet /

ĀK, 1, 12, 93.1 oṃ huṃ phaṭkāramantreṇa nirvikalpena sādhakaḥ /