Śrāddha-kalpa: Dāna-phala, Medhya/Amedhya Dravya, and Uparāga
Eclipse) Observances (श्राद्धकल्पः—दानफल-मेध्यामेध्य-उपरागविधिः
नद्यः सागरपर्यन्ता द्वारं दक्षिणपूर्वतः / त्रिशङ्कोर्वर्जयेद्देशं सर्वं द्वादश योजनम्
nadyaḥ sāgaraparyantā dvāraṃ dakṣiṇapūrvataḥ / triśaṅkorvarjayeddeśaṃ sarvaṃ dvādaśa yojanam
Where the rivers run all the way to the ocean and the gateway lies to the southeast, the entire land of Triśaṅku should be avoided for twelve yojanas.