Brihat Samhita
ध्वजशस्त्रभवनतरुतुरगकुञ्जरऽद्येष्वथान्तरिक्षास्ते । दिव्या नक्षत्रस्था भौमाः स्युरतो अन्यथा शिखिनः ॥ ११-०४ ॥
The etherial Ketus appear in flag staffs, instruments of war, houses, trees, horses, elephants and the like. The celestial Ketus appear in stellar regions and the terrestrial ones appear in pits and low grounds in the surface of the Earth.
english translation
dhvajazastrabhavanataruturagakuJjara'dyeSvathAntarikSAste । divyA nakSatrasthA bhaumAH syurato anyathA zikhinaH ॥ 11-04 ॥
hk transliteration by Sanscript