Atharvavedabrahmana 4.7-2

4.7-2

prāṇāpānau janayanniti śaṅgasya mūle maharṛṣervasiṣṭhasya
putraḥ etāṃ vācaṃ sasṛje, śītoṣṇāvihyotsau (1) prādurbhāveyātāmiti
tathā tacchabdamanuvarttate, atha khalu vipāṇamadhye vaśiṣṭhaśilā nāma
prathama āśramro, ditīyaḥ kṛṣṇaśilāstasmin vasiṣṭhaḥ samatapadviśvāmitrajamadagnī jāstore tpataḥ, gautamabharadvājau siṃhī prabhave
tapataḥ śṛṅgagurgurvāse tapatyucchirṛṣṭidroṇe'bhyatapadagastyo'gasyatīrthe
tapati divyaṃ trihaṃ tapati svayambhūḥ kaśyapaḥ kaśyapatuṅge'bhyatapadulūkakacutarakṣuḥ śvā varāhacilvatibabhrukāḥ sarpadaṃṣṭranaḥ saṃhatanukṣaṇavānāḥ
kaśyapatuṅgadarśanāttaraṇavāṭāt siddhirbhavati brāhmaṃ varṣasahasramṛṣivane brahmacāryaikapādenātiṣṭhad ditīyaṃ varṣasahasraṃ mūrddhanyevāmṛtasya dhārāmadhārayad brāhmākhyaṣṭācatvāriṃśataṃ varṣasahasrāṇi
salilasya pṛṣṭhe śivo'bhyatapattasmāttaptāttapaso bhūya evābhyatapat
tadapyetā ṛco'bhivadanti prāṇāpānau janayanniti brāhmaṇam