Jatakaparijata 13.1

13.1

krūragrahaiḥ subalibhirvibalaiśca saumyaiḥ catuṣṭayagateta davekṣaṇādvā |
candropagadvirasamāgasamānarūpaṃ sattvaṃ vadedyādi bhavetsa viyonisaṃjñaḥ ||

When malefic planets are very strong and benefics are weak, situated in cardinal houses or aspecting them, / one should declare the creature to be non-human in form, resembling the two-fold signs occupied by the Moon, if it has the designation 'non-human'.