yasmin praviṣṭe 'sura-vadhūnāṁ prāyaḥ puṁsavanāni bhayād eva sravanti patanti ca.

yasmin-where; praviste-when entered; asura-vadhunam-of the wives of those demons; prayah-almost always; pumsavanani-fetuses; bhayat-because of fear; eva-certainly; sravanti-slip out; patanti-fall down; ca-and.