समुद्रो जनपदं प्रवेष्टुं निष्क्रमितुं वा लभेत ॥ कZ_०२.३४.०२ ॥
samudro janapadaṃ praveṣṭuṃ niṣkramituṃ vā labheta
A sea-trader/overseas traveller should obtain authorization to enter or exit the kingdom.
To manage security risks (spies, contraband, disease), regulate commerce, and maintain state visibility over cross-border movement.