Ashtangasamgraha 1.7

1.7

śatakratumupājagmuḥ śaraṇyamamareśvaram |

tāndṛṣṭvaiva sahasrākṣo nijagāda yathāgamam ||

tasya punarahitāhāravihārasevā |

nidānaparyāyāstu heturnimittamāyatanaṃ kārakaḥ kartā kāraṇaṃ pratyayaḥ samutthānaṃ mūlaṃ yoniriti ||

grīvāyāṃ cainamāsajjet |

nābhiṃ ca kuṣṭhatailena secayet ||

They approached Śatakratu, the lord of the immortals who grants refuge. / As soon as he saw them, the thousand-eyed one spoke according to the tradition:

Now, its [cause] is indulging in unwholesome diet and regimen.

Synonyms for nidāna are hetu, nimitta, āyatana, kāraka, kartṛ, kāraṇa, pratyaya, samutthāna, mūla, and yoni.

And one should suspend this [amulet] around the neck.

And one should sprinkle the navel with kuṣṭha oil.