Brihajjataka 11.2

11.2

vakra arkaja arka gurubhiḥ sakalais tribhiś ca sva ucceṣu ṣoḍaśa nṛpāḥ kathita ekalagne/
dvy eka āśriteṣu ca tathā ekatame vilagne sva kṣetrage śaśini ṣoḍaśa bhūmipāḥ syuḥ//(vasantatilakā)

When Mars, Saturn, the Sun, and Jupiter—either all [four] or three of them—are in their own exaltations, sixteen kings are declared, [each] in one ascendant;
and likewise, when two or one are situated [in exaltation], with the Moon in her own domicile, in any one ascendant, there are sixteen rulers of the earth.