UḍḍT, 8, 13.11 rātricūrṇaṃ śirīṣavalkalacūrṇaṃ ca gavyaghṛtena saha yasyai vanitāyai ṛtusnānadivase pānārthaṃ dīyate sā strī vandhyāpi garbhavatī bhavati nātra saṃśayaḥ /