Bhagavatapurana 8.16.31

8.16.31

namo dviśīrṣṇe tripade catuḥśṛṅgāya tantave /
saptahastāya yajñāya trayīvidyātmane namaḥ //

31. Salutation to Thee that hast two heads, three feet, four

horns, the power of distributing fruits, seven hands, that art (in the form of) *yagna*, and the one described in (and knowable) through the Vedas.