Garudapurana 1.19.14

1.19.14

dātavyaṃ viṣapāpaghnaṃ bījaṃ tasya caturvidham /
vindupañcasvarayutamādyamuktaṃ dvitīyakam /
ṣaṣṭhārūḍhaṃ tṛtīyaṃ syātsavisargaṃ caturthakam /
oṃ kuru kule svāhā //

The fourfold seed-syllable that destroys poison and sin should be applied: / the first is said to have a bindu and five vowels, the second / is mounted on the sixth, the third has a visarga, and the fourth is: / "Oṃ kuru kule svāhā."