HirGS, 2, 18, 9.1 sagaṇaḥ prācīmudīcīṃ vā diśam upaniṣkramya yatrāpaḥ sukhāḥ sukhāvagāhās tad avagāhyāghamarṣaṇena trīnprāṇāyāmān kṛtvā sapavitraiḥ pāṇibhiḥ /