to a text belonging to the Kriya tantra, the Amogha Pasha: the detailed
ritual of Amogha Pasha. Alcohol, meat, garlic, wild garlic, leek--alone
or mixed with other food--should be especially shunned. And: Those
who wish to keep the precepts must abstain completely from alcohol,
meat, onion, leeks, and the remnants of the offerings to the gods.
This tantra focuses on the four-faced Avalokiteshvara.
FB, p. 70)