Anandakanda 1.22.8

1.22.8

aśvinyāṃ śuciraśvatthavandākaṃ vidhināhṛtam /
kṣīreṇa piṣṭamāloḍya pibedaśvabalo bhavet //

Under [the asterism of] Aśvinī, a pure person should drink parasitic plant of aśvattha gathered according to rule, / ground and stirred into milk; he becomes endowed with the strength of a horse.